<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:58234cfe-504d-43bb-8fcc-e72d38ecdf33,g:ae371d9c-a800-43ab-9ef8-a33e84216a3d-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.drhc.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOME" xlink:type="simple" xlink:href="drh-20251231.xsd#CONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOME"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_ae6df211-47f9-4fb6-a402-2bef9034849c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_StatementTable_ae6df211-47f9-4fb6-a402-2bef9034849c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_7b1011a6-91be-4610-9fba-94f1ca4235a8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ae6df211-47f9-4fb6-a402-2bef9034849c" xlink:to="loc_srt_ProductOrServiceAxis_7b1011a6-91be-4610-9fba-94f1ca4235a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_7b1011a6-91be-4610-9fba-94f1ca4235a8_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_7b1011a6-91be-4610-9fba-94f1ca4235a8" xlink:to="loc_srt_ProductsAndServicesDomain_7b1011a6-91be-4610-9fba-94f1ca4235a8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_b223a963-2eb0-419f-9b85-ebc22c325b9e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_7b1011a6-91be-4610-9fba-94f1ca4235a8" xlink:to="loc_srt_ProductsAndServicesDomain_b223a963-2eb0-419f-9b85-ebc22c325b9e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OccupancyMember_98330f59-a1ae-4aed-8bf4-0eb4731e3ce5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OccupancyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b223a963-2eb0-419f-9b85-ebc22c325b9e" xlink:to="loc_us-gaap_OccupancyMember_98330f59-a1ae-4aed-8bf4-0eb4731e3ce5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FoodAndBeverageMember_fe7ef7c3-e275-41b1-87af-5aa6cd972d37" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FoodAndBeverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b223a963-2eb0-419f-9b85-ebc22c325b9e" xlink:to="loc_us-gaap_FoodAndBeverageMember_fe7ef7c3-e275-41b1-87af-5aa6cd972d37" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HotelOwnedMember_b987647c-49d3-4c28-984c-cb02c0b81d75" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HotelOwnedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b223a963-2eb0-419f-9b85-ebc22c325b9e" xlink:to="loc_us-gaap_HotelOwnedMember_b987647c-49d3-4c28-984c-cb02c0b81d75" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelManagementMember_cd740b91-f732-4a27-b2e1-19505103a421" xlink:href="drh-20251231.xsd#drh_HotelManagementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b223a963-2eb0-419f-9b85-ebc22c325b9e" xlink:to="loc_drh_HotelManagementMember_cd740b91-f732-4a27-b2e1-19505103a421" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FranchiseMember_1cc0098b-d999-41c3-aab5-0fd2e1df3af8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FranchiseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b223a963-2eb0-419f-9b85-ebc22c325b9e" xlink:to="loc_us-gaap_FranchiseMember_1cc0098b-d999-41c3-aab5-0fd2e1df3af8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_OtherPropertyLevelExpensesMember_3465a541-b40a-44de-a896-dae6690bd4b2" xlink:href="drh-20251231.xsd#drh_OtherPropertyLevelExpensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b223a963-2eb0-419f-9b85-ebc22c325b9e" xlink:to="loc_drh_OtherPropertyLevelExpensesMember_3465a541-b40a-44de-a896-dae6690bd4b2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_ddb88b4a-5fc9-49a0-ad23-ba827da16287" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_RevenuesAbstract_ddb88b4a-5fc9-49a0-ad23-ba827da16287" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_d10679fb-a6c1-40c6-afdb-8105578e6894" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_ddb88b4a-5fc9-49a0-ad23-ba827da16287" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_d10679fb-a6c1-40c6-afdb-8105578e6894" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpensesAbstract_d69a88bc-04f5-4f8d-8afc-4be9512e55b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_CostsAndExpensesAbstract_d69a88bc-04f5-4f8d-8afc-4be9512e55b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_cc985cb0-4bfc-4675-8bc1-38f0a3221327" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_d69a88bc-04f5-4f8d-8afc-4be9512e55b3" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_cc985cb0-4bfc-4675-8bc1-38f0a3221327" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization_3d67af46-d915-4f32-b8ba-becd8ad33b70" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_d69a88bc-04f5-4f8d-8afc-4be9512e55b3" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization_3d67af46-d915-4f32-b8ba-becd8ad33b70" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_b1aaa73f-1056-4f71-ab0f-16d8b484cf1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_d69a88bc-04f5-4f8d-8afc-4be9512e55b3" xlink:to="loc_us-gaap_AssetImpairmentCharges_b1aaa73f-1056-4f71-ab0f-16d8b484cf1e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_162005c8-2d69-4d36-b013-7b5dafd98962" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_d69a88bc-04f5-4f8d-8afc-4be9512e55b3" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_162005c8-2d69-4d36-b013-7b5dafd98962" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainOnBusinessInterruptionInsuranceRecovery_fe61c6d1-8c31-4c77-9b72-ea815b8688cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainOnBusinessInterruptionInsuranceRecovery"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_d69a88bc-04f5-4f8d-8afc-4be9512e55b3" xlink:to="loc_us-gaap_GainOnBusinessInterruptionInsuranceRecovery_fe61c6d1-8c31-4c77-9b72-ea815b8688cd" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_4da868dd-d067-4592-a36d-76be8e20da8b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostsAndExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_d69a88bc-04f5-4f8d-8afc-4be9512e55b3" xlink:to="loc_us-gaap_CostsAndExpenses_4da868dd-d067-4592-a36d-76be8e20da8b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_a1b68b17-55a9-4ff2-8067-d27996634b6d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_InterestExpenseNonoperating_a1b68b17-55a9-4ff2-8067-d27996634b6d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_017fa7a9-2a66-4440-8e76-a47cc4869498" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_017fa7a9-2a66-4440-8e76-a47cc4869498" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_c80c1767-e512-4002-aeea-9d9c3dbec7f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_c80c1767-e512-4002-aeea-9d9c3dbec7f1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_320e8813-2690-42eb-9640-612bddf8c837" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_320e8813-2690-42eb-9640-612bddf8c837" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_6fa384b4-3e01-4a0d-a8e2-4c15a298701a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_6fa384b4-3e01-4a0d-a8e2-4c15a298701a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_1f6987e7-33f6-4eea-9c88-83782d9d169a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_1f6987e7-33f6-4eea-9c88-83782d9d169a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_d604e873-bfcb-4a20-b767-f946b203417f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_ProfitLoss_d604e873-bfcb-4a20-b767-f946b203417f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_33091b2c-08cf-40c2-a441-2cc43814009f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_33091b2c-08cf-40c2-a441-2cc43814009f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_9a87fe64-173b-4510-a5be-c695188dda62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_NetIncomeLoss_9a87fe64-173b-4510-a5be-c695188dda62" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_bb84fa74-61ad-4ba8-89dc-07b6d3d3723a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_bb84fa74-61ad-4ba8-89dc-07b6d3d3723a" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_cfce0628-62a0-4ad5-b282-ce603e89af8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_cfce0628-62a0-4ad5-b282-ce603e89af8a" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_c75cc3a6-bf09-4991-9630-b831af164bb9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_EarningsPerShareAbstract_c75cc3a6-bf09-4991-9630-b831af164bb9" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_7dcb8bab-00d5-4164-95f7-ad5cd008bc00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_c75cc3a6-bf09-4991-9630-b831af164bb9" xlink:to="loc_us-gaap_EarningsPerShareBasic_7dcb8bab-00d5-4164-95f7-ad5cd008bc00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_8f26e19d-a6b4-49f0-9f58-e626fb86df05" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_c75cc3a6-bf09-4991-9630-b831af164bb9" xlink:to="loc_us-gaap_EarningsPerShareDiluted_8f26e19d-a6b4-49f0-9f58-e626fb86df05" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_65968ad3-473a-4eb5-83e4-30c2ac8add7d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_65968ad3-473a-4eb5-83e4-30c2ac8add7d" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_42158cad-d7ad-4846-9271-ff99d2eb1348" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_65968ad3-473a-4eb5-83e4-30c2ac8add7d" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_42158cad-d7ad-4846-9271-ff99d2eb1348" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_0a0e5d2a-7124-453c-9a3e-dfda03696592" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_65968ad3-473a-4eb5-83e4-30c2ac8add7d" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_0a0e5d2a-7124-453c-9a3e-dfda03696592" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAbstract_907366f6-8162-40d9-bdb9-8bd79e772db4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_43bc60f1-07a6-462f-b4f4-ab4d874a7186" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAbstract_907366f6-8162-40d9-bdb9-8bd79e772db4" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_62a55903-889a-4914-ad94-ee5d2acdb64b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_2c33652d-7295-40c1-bba3-e34d1c1e798d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAbstract_907366f6-8162-40d9-bdb9-8bd79e772db4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_2c33652d-7295-40c1-bba3-e34d1c1e798d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxIncludingPortionAttributableToNoncontrollingInterest_061aaacf-ab4c-4a18-b7c8-6e47fe352804" xlink:href="drh-20251231.xsd#drh_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_2c33652d-7295-40c1-bba3-e34d1c1e798d" xlink:to="loc_drh_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxIncludingPortionAttributableToNoncontrollingInterest_061aaacf-ab4c-4a18-b7c8-6e47fe352804" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_OCIEquityMethodInvestmentAfterTaxIncludingPortionAttributableToNoncontrollingInterest_1dcd020e-6ae7-4ccd-ab0b-b87e461df1ca" xlink:href="drh-20251231.xsd#drh_OCIEquityMethodInvestmentAfterTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_2c33652d-7295-40c1-bba3-e34d1c1e798d" xlink:to="loc_drh_OCIEquityMethodInvestmentAfterTaxIncludingPortionAttributableToNoncontrollingInterest_1dcd020e-6ae7-4ccd-ab0b-b87e461df1ca" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019c54cd-64e8-7e73-9768-004cd6f26ceb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_2c33652d-7295-40c1-bba3-e34d1c1e798d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019c54cd-64e8-7e73-9768-004cd6f26ceb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_99a81294-bdb3-4647-a7b7-c2cac3161eb9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAbstract_907366f6-8162-40d9-bdb9-8bd79e772db4" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_99a81294-bdb3-4647-a7b7-c2cac3161eb9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_cdca9b3a-5a6c-4e94-a7cd-036e75832c6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAbstract_907366f6-8162-40d9-bdb9-8bd79e772db4" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_cdca9b3a-5a6c-4e94-a7cd-036e75832c6e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_50918f9f-92b8-4143-b3c8-9d5a5a38983a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAbstract_907366f6-8162-40d9-bdb9-8bd79e772db4" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_50918f9f-92b8-4143-b3c8-9d5a5a38983a" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/CONSOLIDATEDSTATEMENTSOFEQUITY" xlink:type="simple" xlink:href="drh-20251231.xsd#CONSOLIDATEDSTATEMENTSOFEQUITY"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/CONSOLIDATEDSTATEMENTSOFEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_8ea7471f-f79c-435c-a763-be8e0c4bbccb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_1c4647e6-f3ff-4674-b47f-b7a94f7cc80e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_8ea7471f-f79c-435c-a763-be8e0c4bbccb" xlink:to="loc_us-gaap_StatementTable_1c4647e6-f3ff-4674-b47f-b7a94f7cc80e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_174d3ae8-4fcc-42ce-a720-7fd6f36b7cad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_1c4647e6-f3ff-4674-b47f-b7a94f7cc80e" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_174d3ae8-4fcc-42ce-a720-7fd6f36b7cad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_174d3ae8-4fcc-42ce-a720-7fd6f36b7cad_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_174d3ae8-4fcc-42ce-a720-7fd6f36b7cad" xlink:to="loc_us-gaap_EquityComponentDomain_174d3ae8-4fcc-42ce-a720-7fd6f36b7cad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_e9feea94-7582-4071-8bfb-9f6336e7cdeb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_174d3ae8-4fcc-42ce-a720-7fd6f36b7cad" xlink:to="loc_us-gaap_EquityComponentDomain_e9feea94-7582-4071-8bfb-9f6336e7cdeb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParentMember_0fddc5e3-9815-4961-ab71-38921205a2ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_e9feea94-7582-4071-8bfb-9f6336e7cdeb" xlink:to="loc_us-gaap_ParentMember_0fddc5e3-9815-4961-ab71-38921205a2ce" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember_4e240443-8e3e-4a77-9458-8737b89950c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_0fddc5e3-9815-4961-ab71-38921205a2ce" xlink:to="loc_us-gaap_PreferredStockMember_4e240443-8e3e-4a77-9458-8737b89950c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_df82f68c-ca8d-4ae3-bed9-6076aff2e2b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_0fddc5e3-9815-4961-ab71-38921205a2ce" xlink:to="loc_us-gaap_CommonStockMember_df82f68c-ca8d-4ae3-bed9-6076aff2e2b2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_36109023-0d3e-414c-99fc-4ddd242883c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_0fddc5e3-9815-4961-ab71-38921205a2ce" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_36109023-0d3e-414c-99fc-4ddd242883c1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_c7224b09-7285-4754-9634-d8dd88aa0aab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_0fddc5e3-9815-4961-ab71-38921205a2ce" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_c7224b09-7285-4754-9634-d8dd88aa0aab" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_662ee4c6-93c6-46a3-bfc1-50bb0daeed48" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_0fddc5e3-9815-4961-ab71-38921205a2ce" xlink:to="loc_us-gaap_RetainedEarningsMember_662ee4c6-93c6-46a3-bfc1-50bb0daeed48" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_5436b437-926e-4884-b18e-3b7705ec9655" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_e9feea94-7582-4071-8bfb-9f6336e7cdeb" xlink:to="loc_us-gaap_NoncontrollingInterestMember_5436b437-926e-4884-b18e-3b7705ec9655" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_8ea7471f-f79c-435c-a763-be8e0c4bbccb" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_019b2b61-6296-74cc-a995-8e6451e9c6f4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_019b2b61-6296-74cc-a995-8e6451e9c6f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019b2b61-6296-7c50-a2a9-e0ea13b8d3c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019b2b61-6296-7c50-a2a9-e0ea13b8d3c9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ab757c0f-594d-4ea0-a049-870ff2470d29" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_ab757c0f-594d-4ea0-a049-870ff2470d29" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_d1dc585a-ad2b-4a37-8bf8-b48c58b00227" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_ProfitLoss_d1dc585a-ad2b-4a37-8bf8-b48c58b00227" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_c2ed7f75-5145-4552-b473-0afdc45d48b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_c2ed7f75-5145-4552-b473-0afdc45d48b6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_OCIEquityMethodInvestmentAfterTaxIncludingPortionAttributableToNoncontrollingInterest_d2a05884-511c-4d4d-a308-350a4d2244a5" xlink:href="drh-20251231.xsd#drh_OCIEquityMethodInvestmentAfterTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_drh_OCIEquityMethodInvestmentAfterTaxIncludingPortionAttributableToNoncontrollingInterest_d2a05884-511c-4d4d-a308-350a4d2244a5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019c54ce-ada8-7152-b689-881ae1593848" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019c54ce-ada8-7152-b689-881ae1593848" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_0a0f0f8b-bf31-4f13-aa0d-6d8de5bf9243" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_DividendsCommonStockCash_0a0f0f8b-bf31-4f13-aa0d-6d8de5bf9243" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPreferredStockCash_72d33f78-a24b-421d-a856-765d079cde60" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsPreferredStockCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_DividendsPreferredStockCash_72d33f78-a24b-421d-a856-765d079cde60" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_dca97340-72de-4446-a0b8-87bbb154d263" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_dca97340-72de-4446-a0b8-87bbb154d263" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_c9638cd7-0074-4b1f-8b2f-b074434d6988" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_c9638cd7-0074-4b1f-8b2f-b074434d6988" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_StockRedeemedToSatisfyWithholdingsOnVestedShareBasedCompensationShares_3f5fad08-faba-473b-a04b-f2d872acdd6f" xlink:href="drh-20251231.xsd#drh_StockRedeemedToSatisfyWithholdingsOnVestedShareBasedCompensationShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_drh_StockRedeemedToSatisfyWithholdingsOnVestedShareBasedCompensationShares_3f5fad08-faba-473b-a04b-f2d872acdd6f" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_StockRedeemedToSatisfyWithholdingsOnVestedShareBasedCompensationValue_62dec470-1918-4428-83a7-d3bbe0928b6b" xlink:href="drh-20251231.xsd#drh_StockRedeemedToSatisfyWithholdingsOnVestedShareBasedCompensationValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_drh_StockRedeemedToSatisfyWithholdingsOnVestedShareBasedCompensationValue_62dec470-1918-4428-83a7-d3bbe0928b6b" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_a7375c12-d308-4ae9-9fe2-a56c29ce4f3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_a7375c12-d308-4ae9-9fe2-a56c29ce4f3f" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_019c9602-d9cf-7348-bc07-6909bbd50b07" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_019c9602-d9cf-7348-bc07-6909bbd50b07" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRedeemedOrCalledDuringPeriodShares_019c964d-ed92-7d09-a019-b353bc1c9ab2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_StockRedeemedOrCalledDuringPeriodShares_019c964d-ed92-7d09-a019-b353bc1c9ab2" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRedeemedOrCalledDuringPeriodValue_019c964d-bf64-788b-ae1a-7f08f2cef443" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_StockRedeemedOrCalledDuringPeriodValue_019c964d-bf64-788b-ae1a-7f08f2cef443" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_f79c9538-c638-4f37-a7e6-1ef6f7c4ad40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_f79c9538-c638-4f37-a7e6-1ef6f7c4ad40" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_228b36ea-868f-4e38-98e5-a608ff6f8655" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_1f4b75ee-dc4c-4dcf-90b0-a05ebfc4ad13" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_228b36ea-868f-4e38-98e5-a608ff6f8655" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_019b2b65-87b8-753c-aa58-59c7722718e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019b2b66-4c38-7acb-9334-c73b0a7a2740" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_bafcbf1b-853b-4496-820f-78dbb5f347c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical" xlink:type="simple" xlink:href="drh-20251231.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019c8890-6b4e-7b71-96a5-63d4dd96d9c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019c8890-6b4e-7a4d-b6cb-06fae2fc7c3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019c8890-6b4e-7b71-96a5-63d4dd96d9c1" xlink:to="loc_us-gaap_StatementTable_019c8890-6b4e-7a4d-b6cb-06fae2fc7c3d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019c8890-6b4e-7e7a-818a-588e5c9e7d01" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019c8890-6b4e-7a4d-b6cb-06fae2fc7c3d" xlink:to="loc_us-gaap_DebtInstrumentAxis_019c8890-6b4e-7e7a-818a-588e5c9e7d01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c8890-6b4e-7e7a-818a-588e5c9e7d01_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c8890-6b4e-7e7a-818a-588e5c9e7d01" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c8890-6b4e-7e7a-818a-588e5c9e7d01_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c8890-6b4e-76b2-8648-45908bc96f54" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c8890-6b4e-7e7a-818a-588e5c9e7d01" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c8890-6b4e-76b2-8648-45908bc96f54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanDueJanuary2026Member_019c8890-6b4e-7aeb-bbda-4727f711233f" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanDueJanuary2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c8890-6b4e-76b2-8648-45908bc96f54" xlink:to="loc_drh_UnsecuredTermLoanDueJanuary2026Member_019c8890-6b4e-7aeb-bbda-4727f711233f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanDueJanuary2029Member_019c95f0-4802-7887-bd89-50f5189ea74c" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanDueJanuary2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c8890-6b4e-76b2-8648-45908bc96f54" xlink:to="loc_drh_UnsecuredTermLoanDueJanuary2029Member_019c95f0-4802-7887-bd89-50f5189ea74c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanDueJanuary2030Member_019c95f0-4802-7f71-9af0-34d29f664a44" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanDueJanuary2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c8890-6b4e-76b2-8648-45908bc96f54" xlink:to="loc_drh_UnsecuredTermLoanDueJanuary2030Member_019c95f0-4802-7f71-9af0-34d29f664a44" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019c8890-6b4e-7845-aaf4-cd98678a7140" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019c8890-6b4e-7a4d-b6cb-06fae2fc7c3d" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019c8890-6b4e-7845-aaf4-cd98678a7140" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c8890-6b4e-7845-aaf4-cd98678a7140_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019c8890-6b4e-7845-aaf4-cd98678a7140" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c8890-6b4e-7845-aaf4-cd98678a7140_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c8890-6b4e-7eca-a156-ecc205fd697c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019c8890-6b4e-7845-aaf4-cd98678a7140" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c8890-6b4e-7eca-a156-ecc205fd697c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanMember_019c8890-6b4e-7aca-b4e9-59770bdee1fa" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c8890-6b4e-7eca-a156-ecc205fd697c" xlink:to="loc_drh_UnsecuredTermLoanMember_019c8890-6b4e-7aca-b4e9-59770bdee1fa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019c8890-6b4e-7f01-a597-f62fd5a543d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019c8890-6b4e-7b71-96a5-63d4dd96d9c1" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019c8890-6b4e-7f01-a597-f62fd5a543d7" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/OrganizationDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#OrganizationDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/OrganizationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstatePropertiesLineItems_019c1e37-00fe-71c9-b9bc-9ce969518233" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstatePropertiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRealEstatePropertiesTable_019c1e37-00fe-7787-b694-c2adade96279" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRealEstatePropertiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RealEstatePropertiesLineItems_019c1e37-00fe-71c9-b9bc-9ce969518233" xlink:to="loc_us-gaap_ScheduleOfRealEstatePropertiesTable_019c1e37-00fe-7787-b694-c2adade96279" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019c1e37-00fe-7847-ad34-88e2997bdcac" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRealEstatePropertiesTable_019c1e37-00fe-7787-b694-c2adade96279" xlink:to="loc_srt_OwnershipAxis_019c1e37-00fe-7847-ad34-88e2997bdcac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019c1e37-00fe-7847-ad34-88e2997bdcac_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019c1e37-00fe-7847-ad34-88e2997bdcac" xlink:to="loc_srt_OwnershipDomain_019c1e37-00fe-7847-ad34-88e2997bdcac_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019c1e37-00fe-7ad6-9681-ebfd5d4a160f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019c1e37-00fe-7847-ad34-88e2997bdcac" xlink:to="loc_srt_OwnershipDomain_019c1e37-00fe-7ad6-9681-ebfd5d4a160f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DiamondRockHospitalityLimitedPartnershipMember_019c1e37-00fe-7046-9092-bb70d10931d8" xlink:href="drh-20251231.xsd#drh_DiamondRockHospitalityLimitedPartnershipMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019c1e37-00fe-7ad6-9681-ebfd5d4a160f" xlink:to="loc_drh_DiamondRockHospitalityLimitedPartnershipMember_019c1e37-00fe-7046-9092-bb70d10931d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfRealEstateProperties_019c1e37-00fe-77ee-ad8f-069c3d854147" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfRealEstateProperties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesLineItems_019c1e37-00fe-71c9-b9bc-9ce969518233" xlink:to="loc_us-gaap_NumberOfRealEstateProperties_019c1e37-00fe-77ee-ad8f-069c3d854147" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfUnitsInRealEstateProperty_019c1e37-00fe-78ba-8055-888d238205e0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfUnitsInRealEstateProperty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesLineItems_019c1e37-00fe-71c9-b9bc-9ce969518233" xlink:to="loc_us-gaap_NumberOfUnitsInRealEstateProperty_019c1e37-00fe-78ba-8055-888d238205e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_NumberOfHotelsOperatedPercentage_019c1e37-00fe-719c-9733-a6e6cdfff7e0" xlink:href="drh-20251231.xsd#drh_NumberOfHotelsOperatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesLineItems_019c1e37-00fe-71c9-b9bc-9ce969518233" xlink:to="loc_drh_NumberOfHotelsOperatedPercentage_019c1e37-00fe-719c-9733-a6e6cdfff7e0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest_019c1e37-00fe-75e4-9816-d58e4de32ef1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesLineItems_019c1e37-00fe-71c9-b9bc-9ce969518233" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest_019c1e37-00fe-75e4-9816-d58e4de32ef1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest_019c1e37-00fe-7a7b-892e-4da15512dc6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesLineItems_019c1e37-00fe-71c9-b9bc-9ce969518233" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest_019c1e37-00fe-7a7b-892e-4da15512dc6f" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/SummaryofSignificantAccountingPoliciesDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#SummaryofSignificantAccountingPoliciesDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/SummaryofSignificantAccountingPoliciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77bbb4cc-b2ff-4830-a35d-f2c7847ee5d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77bbb4cc-b2ff-4830-a35d-f2c7847ee5d8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_61428332-0fdb-44ee-be73-6c3da93dc0ea" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77bbb4cc-b2ff-4830-a35d-f2c7847ee5d8" xlink:to="loc_srt_RangeAxis_61428332-0fdb-44ee-be73-6c3da93dc0ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_61428332-0fdb-44ee-be73-6c3da93dc0ea_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_61428332-0fdb-44ee-be73-6c3da93dc0ea" xlink:to="loc_srt_RangeMember_61428332-0fdb-44ee-be73-6c3da93dc0ea_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_51d50bb7-b5bb-4d1f-bfef-9465e8177f51" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_61428332-0fdb-44ee-be73-6c3da93dc0ea" xlink:to="loc_srt_RangeMember_51d50bb7-b5bb-4d1f-bfef-9465e8177f51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_9368cab8-91a3-4472-af9d-95b6d815a2a3" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_51d50bb7-b5bb-4d1f-bfef-9465e8177f51" xlink:to="loc_srt_MinimumMember_9368cab8-91a3-4472-af9d-95b6d815a2a3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_8233b413-e950-419c-8b86-651463e2bf37" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_51d50bb7-b5bb-4d1f-bfef-9465e8177f51" xlink:to="loc_srt_MaximumMember_8233b413-e950-419c-8b86-651463e2bf37" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_082ea276-268e-4666-8577-c171bbe47fc3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77bbb4cc-b2ff-4830-a35d-f2c7847ee5d8" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_082ea276-268e-4666-8577-c171bbe47fc3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_082ea276-268e-4666-8577-c171bbe47fc3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_082ea276-268e-4666-8577-c171bbe47fc3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_082ea276-268e-4666-8577-c171bbe47fc3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_19c4d3c8-99a6-49a6-bff5-01731a0c8f69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_082ea276-268e-4666-8577-c171bbe47fc3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_19c4d3c8-99a6-49a6-bff5-01731a0c8f69" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandBuildingsAndImprovementsMember_dbbc3af6-97f0-46ed-9bab-970067500ee7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandBuildingsAndImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_19c4d3c8-99a6-49a6-bff5-01731a0c8f69" xlink:to="loc_us-gaap_LandBuildingsAndImprovementsMember_dbbc3af6-97f0-46ed-9bab-970067500ee7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_FurnitureFixturesAndEquipmentMember_9306b6d8-0238-4dfd-a751-e4ee2b2fc273" xlink:href="drh-20251231.xsd#drh_FurnitureFixturesAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_19c4d3c8-99a6-49a6-bff5-01731a0c8f69" xlink:to="loc_drh_FurnitureFixturesAndEquipmentMember_9306b6d8-0238-4dfd-a751-e4ee2b2fc273" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ComputerEquipmentAndAcquiredSoftwareMember_06784393-c301-4dc1-aeb9-c4ebfa53a759" xlink:href="drh-20251231.xsd#drh_ComputerEquipmentAndAcquiredSoftwareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_19c4d3c8-99a6-49a6-bff5-01731a0c8f69" xlink:to="loc_drh_ComputerEquipmentAndAcquiredSoftwareMember_06784393-c301-4dc1-aeb9-c4ebfa53a759" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_1958a6aa-07d2-4e04-9f79-2f30c05692df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77bbb4cc-b2ff-4830-a35d-f2c7847ee5d8" xlink:to="loc_us-gaap_AwardTypeAxis_1958a6aa-07d2-4e04-9f79-2f30c05692df" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1958a6aa-07d2-4e04-9f79-2f30c05692df_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_1958a6aa-07d2-4e04-9f79-2f30c05692df" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1958a6aa-07d2-4e04-9f79-2f30c05692df_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_195e4421-1019-45a4-91a4-187c7b25fa5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_1958a6aa-07d2-4e04-9f79-2f30c05692df" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_195e4421-1019-45a4-91a4-187c7b25fa5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_47e338f8-e0e8-4111-8cfd-ae1e399af47b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_195e4421-1019-45a4-91a4-187c7b25fa5f" xlink:to="loc_us-gaap_RestrictedStockMember_47e338f8-e0e8-4111-8cfd-ae1e399af47b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_535fc781-6f5c-4ef8-8129-d4f122cef0cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_195e4421-1019-45a4-91a4-187c7b25fa5f" xlink:to="loc_us-gaap_PerformanceSharesMember_535fc781-6f5c-4ef8-8129-d4f122cef0cc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_1c2b7c41-b602-421c-ae4a-6ffda1342b3e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77bbb4cc-b2ff-4830-a35d-f2c7847ee5d8" xlink:to="loc_srt_TitleOfIndividualAxis_1c2b7c41-b602-421c-ae4a-6ffda1342b3e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_1c2b7c41-b602-421c-ae4a-6ffda1342b3e_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_1c2b7c41-b602-421c-ae4a-6ffda1342b3e" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_1c2b7c41-b602-421c-ae4a-6ffda1342b3e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_a04cf0c5-5de9-431f-8b4e-b982f23b372d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_1c2b7c41-b602-421c-ae4a-6ffda1342b3e" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_a04cf0c5-5de9-431f-8b4e-b982f23b372d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ExecutiveOfficerMember_c0afe21b-bc4c-4b2d-9c9e-33992aedf195" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_a04cf0c5-5de9-431f-8b4e-b982f23b372d" xlink:to="loc_srt_ExecutiveOfficerMember_c0afe21b-bc4c-4b2d-9c9e-33992aedf195" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_63e92152-613d-4c32-b08d-4bbbc504b4db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77bbb4cc-b2ff-4830-a35d-f2c7847ee5d8" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_63e92152-613d-4c32-b08d-4bbbc504b4db" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_63e92152-613d-4c32-b08d-4bbbc504b4db_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_63e92152-613d-4c32-b08d-4bbbc504b4db" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_63e92152-613d-4c32-b08d-4bbbc504b4db_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e040b650-4d8a-48f0-b221-e7494977cf86" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_63e92152-613d-4c32-b08d-4bbbc504b4db" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e040b650-4d8a-48f0-b221-e7494977cf86" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_0f7e80e2-6eb7-4492-b61c-dc5bcbb50b72" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e040b650-4d8a-48f0-b221-e7494977cf86" xlink:to="loc_us-gaap_SalesRevenueNetMember_0f7e80e2-6eb7-4492-b61c-dc5bcbb50b72" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_AssetsBenchmarkMember_019c1e3b-cc2d-7696-8ca7-24ced6d26867" xlink:href="drh-20251231.xsd#drh_AssetsBenchmarkMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e040b650-4d8a-48f0-b221-e7494977cf86" xlink:to="loc_drh_AssetsBenchmarkMember_019c1e3b-cc2d-7696-8ca7-24ced6d26867" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_IncomeBeforeTaxesBenchmarkMember_87b7d17b-16d2-43eb-ab99-5a8fe1cbbc2e" xlink:href="drh-20251231.xsd#drh_IncomeBeforeTaxesBenchmarkMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e040b650-4d8a-48f0-b221-e7494977cf86" xlink:to="loc_drh_IncomeBeforeTaxesBenchmarkMember_87b7d17b-16d2-43eb-ab99-5a8fe1cbbc2e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_8eaba32a-332b-416d-b03c-2271ff8e65c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77bbb4cc-b2ff-4830-a35d-f2c7847ee5d8" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_8eaba32a-332b-416d-b03c-2271ff8e65c7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_8eaba32a-332b-416d-b03c-2271ff8e65c7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_8eaba32a-332b-416d-b03c-2271ff8e65c7" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_8eaba32a-332b-416d-b03c-2271ff8e65c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_44578888-070e-44c5-ac84-39d152b0b5b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_8eaba32a-332b-416d-b03c-2271ff8e65c7" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_44578888-070e-44c5-ac84-39d152b0b5b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_8e476153-bdb4-43e8-aea7-328c79693e7b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_44578888-070e-44c5-ac84-39d152b0b5b5" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_8e476153-bdb4-43e8-aea7-328c79693e7b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_31899a30-16b7-4592-a47d-11f8fe589708" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_77bbb4cc-b2ff-4830-a35d-f2c7847ee5d8" xlink:to="loc_srt_MajorCustomersAxis_31899a30-16b7-4592-a47d-11f8fe589708" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_31899a30-16b7-4592-a47d-11f8fe589708_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_31899a30-16b7-4592-a47d-11f8fe589708" xlink:to="loc_srt_NameOfMajorCustomerDomain_31899a30-16b7-4592-a47d-11f8fe589708_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_247f5913-0f92-4ba3-b5d3-04e139bd21e8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_31899a30-16b7-4592-a47d-11f8fe589708" xlink:to="loc_srt_NameOfMajorCustomerDomain_247f5913-0f92-4ba3-b5d3-04e139bd21e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ChicagoMarriottMember_41def2f7-9cbd-4854-8702-7f7e5290661f" xlink:href="drh-20251231.xsd#drh_ChicagoMarriottMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_247f5913-0f92-4ba3-b5d3-04e139bd21e8" xlink:to="loc_drh_ChicagoMarriottMember_41def2f7-9cbd-4854-8702-7f7e5290661f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_bd99cd09-c2c4-42bc-8f6b-5a82a5ee49d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_bd99cd09-c2c4-42bc-8f6b-5a82a5ee49d5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_ba368b99-cee1-4f9a-873d-d6a928a7aaba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilityForUncertainTaxPositionsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:to="loc_us-gaap_LiabilityForUncertainTaxPositionsNoncurrent_ba368b99-cee1-4f9a-873d-d6a928a7aaba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_450a992d-6f77-4c83-bab9-c745553c969d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_450a992d-6f77-4c83-bab9-c745553c969d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentArrangementPerformancePeriod_afe283e0-8bf6-4475-955a-faac6b0a0ab0" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentArrangementPerformancePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentArrangementPerformancePeriod_afe283e0-8bf6-4475-955a-faac6b0a0ab0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesIssuedBasedOnTotalShareholderReturn_22fe8f4a-7543-409c-88a3-035b37e5531f" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesIssuedBasedOnTotalShareholderReturn"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesIssuedBasedOnTotalShareholderReturn_22fe8f4a-7543-409c-88a3-035b37e5531f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesIssuedBasedOnHotelMarketShare_64c67b55-5c0b-4f4c-81ed-aba0753c0b93" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesIssuedBasedOnHotelMarketShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfSharesIssuedBasedOnHotelMarketShare_64c67b55-5c0b-4f4c-81ed-aba0753c0b93" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfTotalStockholderReturnForPayoutOfShares_7116414c-4090-40a8-9673-aa5b112830ca" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfTotalStockholderReturnForPayoutOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfTotalStockholderReturnForPayoutOfShares_7116414c-4090-40a8-9673-aa5b112830ca" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_0d0fc1de-a8af-43ac-a633-8e4465ac9d40" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_c7111ac2-3b06-4097-9084-9d48ddb7effd" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_0d0fc1de-a8af-43ac-a633-8e4465ac9d40" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/PropertyandEquipmentScheduleofPropertyandEquipmentDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#PropertyandEquipmentScheduleofPropertyandEquipmentDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/PropertyandEquipmentScheduleofPropertyandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_70434320-9931-4005-a89b-e6870cb9a104" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ffca6b0b-5aa5-4931-8662-bbb8c0434685" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_70434320-9931-4005-a89b-e6870cb9a104" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ffca6b0b-5aa5-4931-8662-bbb8c0434685" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_5f9b1ef1-7e0c-464d-a9e8-6a84792a5739" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ffca6b0b-5aa5-4931-8662-bbb8c0434685" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_5f9b1ef1-7e0c-464d-a9e8-6a84792a5739" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_5f9b1ef1-7e0c-464d-a9e8-6a84792a5739_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_5f9b1ef1-7e0c-464d-a9e8-6a84792a5739" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_5f9b1ef1-7e0c-464d-a9e8-6a84792a5739_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e3133942-4b90-4a51-9cc1-fe42e417b18a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_5f9b1ef1-7e0c-464d-a9e8-6a84792a5739" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e3133942-4b90-4a51-9cc1-fe42e417b18a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandMember_0f05aaea-358b-4c8c-bd25-3ab83ab3e2c8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e3133942-4b90-4a51-9cc1-fe42e417b18a" xlink:to="loc_us-gaap_LandMember_0f05aaea-358b-4c8c-bd25-3ab83ab3e2c8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandImprovementsMember_3adac1aa-8ba9-4d15-b509-cf362921f8e4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e3133942-4b90-4a51-9cc1-fe42e417b18a" xlink:to="loc_us-gaap_LandImprovementsMember_3adac1aa-8ba9-4d15-b509-cf362921f8e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_44e65b17-4db8-4806-9a2b-9188d32705fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e3133942-4b90-4a51-9cc1-fe42e417b18a" xlink:to="loc_us-gaap_BuildingMember_44e65b17-4db8-4806-9a2b-9188d32705fd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_FurnitureFixturesAndEquipmentMember_8d460333-0245-40b1-9f5f-bf741c4475c8" xlink:href="drh-20251231.xsd#drh_FurnitureFixturesAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e3133942-4b90-4a51-9cc1-fe42e417b18a" xlink:to="loc_drh_FurnitureFixturesAndEquipmentMember_8d460333-0245-40b1-9f5f-bf741c4475c8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_2973a39a-e4e5-4383-a387-f6bcb87e0518" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e3133942-4b90-4a51-9cc1-fe42e417b18a" xlink:to="loc_us-gaap_ConstructionInProgressMember_2973a39a-e4e5-4383-a387-f6bcb87e0518" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_3194abf0-c96c-4004-8fb8-632a652d9164" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_70434320-9931-4005-a89b-e6870cb9a104" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_3194abf0-c96c-4004-8fb8-632a652d9164" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_58feba40-00c7-4755-889f-9f5e20897e7c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_3194abf0-c96c-4004-8fb8-632a652d9164" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_58feba40-00c7-4755-889f-9f5e20897e7c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_0168e7ff-70a7-45ba-987c-f22b73e4e2c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_3194abf0-c96c-4004-8fb8-632a652d9164" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_0168e7ff-70a7-45ba-987c-f22b73e4e2c3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_afd3fd23-838c-49a4-bed1-9f1858e935dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_3194abf0-c96c-4004-8fb8-632a652d9164" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_afd3fd23-838c-49a4-bed1-9f1858e935dc" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/PropertyandEquipmentNarrativeDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#PropertyandEquipmentNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/PropertyandEquipmentNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_a0e4b608-58a4-43c6-9575-2ee12a87a7f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_22ac7c8e-7362-4d81-bded-eb6fef4802e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_a0e4b608-58a4-43c6-9575-2ee12a87a7f6" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_22ac7c8e-7362-4d81-bded-eb6fef4802e5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_e5192adf-8b0d-4fec-8acd-acbfb19d8186" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_22ac7c8e-7362-4d81-bded-eb6fef4802e5" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_e5192adf-8b0d-4fec-8acd-acbfb19d8186" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_e5192adf-8b0d-4fec-8acd-acbfb19d8186_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_e5192adf-8b0d-4fec-8acd-acbfb19d8186" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_e5192adf-8b0d-4fec-8acd-acbfb19d8186_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_15be9bfb-b592-4ae2-be0e-1a64dc6e42cd" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_e5192adf-8b0d-4fec-8acd-acbfb19d8186" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_15be9bfb-b592-4ae2-be0e-1a64dc6e42cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_WestinWashingtonDCCityCenterHotelMember_8e3f4ad5-e70c-4ecd-b9ca-9aad31788ff1" xlink:href="drh-20251231.xsd#drh_WestinWashingtonDCCityCenterHotelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_15be9bfb-b592-4ae2-be0e-1a64dc6e42cd" xlink:to="loc_drh_WestinWashingtonDCCityCenterHotelMember_8e3f4ad5-e70c-4ecd-b9ca-9aad31788ff1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2b3dc89d-aa58-4f95-9fc0-a2464d069936" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_22ac7c8e-7362-4d81-bded-eb6fef4802e5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2b3dc89d-aa58-4f95-9fc0-a2464d069936" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2b3dc89d-aa58-4f95-9fc0-a2464d069936_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2b3dc89d-aa58-4f95-9fc0-a2464d069936" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2b3dc89d-aa58-4f95-9fc0-a2464d069936_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1b7a33da-e3ad-4d5d-99f9-37a7893ddc6d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2b3dc89d-aa58-4f95-9fc0-a2464d069936" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1b7a33da-e3ad-4d5d-99f9-37a7893ddc6d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_7b125cfe-e919-41de-b609-444aa47c0abe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1b7a33da-e3ad-4d5d-99f9-37a7893ddc6d" xlink:to="loc_us-gaap_ConstructionInProgressMember_7b125cfe-e919-41de-b609-444aa47c0abe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_4b8c59c0-c9ae-49c3-8dff-88f718b129a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_a0e4b608-58a4-43c6-9575-2ee12a87a7f6" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_4b8c59c0-c9ae-49c3-8dff-88f718b129a3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_68afc7d2-bc2d-4986-9a5d-d22ab343c6c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_a0e4b608-58a4-43c6-9575-2ee12a87a7f6" xlink:to="loc_us-gaap_AssetImpairmentCharges_68afc7d2-bc2d-4986-9a5d-d22ab343c6c1" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/HotelAcquisitionsandDispositionsDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#HotelAcquisitionsandDispositionsDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/HotelAcquisitionsandDispositionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_019c1e40-bee9-78cc-9ed4-799dfc0e5167" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019c1e3f-7244-7d04-a41c-564197d56e79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019c1e40-bee9-78cc-9ed4-799dfc0e5167" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019c1e3f-7244-7d04-a41c-564197d56e79" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019c1e40-bee9-7d61-86e6-1215271b7c03" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019c1e3f-7244-7d04-a41c-564197d56e79" xlink:to="loc_srt_StatementGeographicalAxis_019c1e40-bee9-7d61-86e6-1215271b7c03" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019c1e40-bee9-7d61-86e6-1215271b7c03_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019c1e40-bee9-7d61-86e6-1215271b7c03" xlink:to="loc_srt_SegmentGeographicalDomain_019c1e40-bee9-7d61-86e6-1215271b7c03_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019c1e40-bee9-799e-8063-39d8ee2cb53d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019c1e40-bee9-7d61-86e6-1215271b7c03" xlink:to="loc_srt_SegmentGeographicalDomain_019c1e40-bee9-799e-8063-39d8ee2cb53d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_MinneapolisMinnesotaMember_019c1e40-bee9-7bb7-898b-2e89790c3042" xlink:href="drh-20251231.xsd#drh_MinneapolisMinnesotaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019c1e40-bee9-799e-8063-39d8ee2cb53d" xlink:to="loc_drh_MinneapolisMinnesotaMember_019c1e40-bee9-7bb7-898b-2e89790c3042" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_019c1e40-bee9-795e-9869-8c59e8e8049a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019c1e3f-7244-7d04-a41c-564197d56e79" xlink:to="loc_us-gaap_AssetAcquisitionAxis_019c1e40-bee9-795e-9869-8c59e8e8049a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019c1e40-bee9-795e-9869-8c59e8e8049a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019c1e40-bee9-795e-9869-8c59e8e8049a" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019c1e40-bee9-795e-9869-8c59e8e8049a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019c1e40-bee9-73ad-8ffe-48ddb2e8fcf7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019c1e40-bee9-795e-9869-8c59e8e8049a" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019c1e40-bee9-73ad-8ffe-48ddb2e8fcf7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ACHotelMinneapolisDowntownMember_019c1e40-bee9-7347-b108-ed95d97b0a9b" xlink:href="drh-20251231.xsd#drh_ACHotelMinneapolisDowntownMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_019c1e40-bee9-73ad-8ffe-48ddb2e8fcf7" xlink:to="loc_drh_ACHotelMinneapolisDowntownMember_019c1e40-bee9-7347-b108-ed95d97b0a9b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019c1e40-bee9-7448-8618-86f97e4cde95" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019c1e3f-7244-7d04-a41c-564197d56e79" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019c1e40-bee9-7448-8618-86f97e4cde95" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e40-bee9-7448-8618-86f97e4cde95_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019c1e40-bee9-7448-8618-86f97e4cde95" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e40-bee9-7448-8618-86f97e4cde95_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e40-bee9-7bb0-b0b3-131584a0fd7e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019c1e40-bee9-7448-8618-86f97e4cde95" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e40-bee9-7bb0-b0b3-131584a0fd7e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_WestinWashingtonDCCityCenterHotelMember_019c1e40-bee9-7775-9980-59fb60067845" xlink:href="drh-20251231.xsd#drh_WestinWashingtonDCCityCenterHotelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e40-bee9-7bb0-b0b3-131584a0fd7e" xlink:to="loc_drh_WestinWashingtonDCCityCenterHotelMember_019c1e40-bee9-7775-9980-59fb60067845" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_NumberOfHotelRoomsAcquired_019c1e40-bee9-74a0-bcb2-d69c89ee4047" xlink:href="drh-20251231.xsd#drh_NumberOfHotelRoomsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019c1e40-bee9-78cc-9ed4-799dfc0e5167" xlink:to="loc_drh_NumberOfHotelRoomsAcquired_019c1e40-bee9-74a0-bcb2-d69c89ee4047" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_019c1e40-bee9-72a5-b79a-f890fee0654a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireProductiveAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019c1e40-bee9-78cc-9ed4-799dfc0e5167" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_019c1e40-bee9-72a5-b79a-f890fee0654a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfBuildings_019c1e40-bee9-740e-9a71-8a42016a8551" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfBuildings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019c1e40-bee9-78cc-9ed4-799dfc0e5167" xlink:to="loc_us-gaap_ProceedsFromSaleOfBuildings_019c1e40-bee9-740e-9a71-8a42016a8551" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_019c1e40-bee9-715a-b62e-5f51bde328cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019c1e40-bee9-78cc-9ed4-799dfc0e5167" xlink:to="loc_us-gaap_AssetImpairmentCharges_019c1e40-bee9-715a-b62e-5f51bde328cf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019c1e41-09f4-7b04-8978-c62dd585d97f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019c1e40-bee9-78cc-9ed4-799dfc0e5167" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019c1e41-09f4-7b04-8978-c62dd585d97f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019c1e41-20f7-72c0-b120-cadcbd76c65e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019c1e40-bee9-78cc-9ed4-799dfc0e5167" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019c1e41-20f7-72c0-b120-cadcbd76c65e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ProceedsFromSaleOfBuildingsNet_019c1e41-3e8d-708a-a4ce-95e37bff89de" xlink:href="drh-20251231.xsd#drh_ProceedsFromSaleOfBuildingsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019c1e40-bee9-78cc-9ed4-799dfc0e5167" xlink:to="loc_drh_ProceedsFromSaleOfBuildingsNet_019c1e41-3e8d-708a-a4ce-95e37bff89de" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/DebtScheduleofLongTermDebtDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#DebtScheduleofLongTermDebtDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/DebtScheduleofLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019c1e47-dee6-7d7c-98cb-43a3d97ce0a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_us-gaap_DebtInstrumentTable_019c1e47-dee6-7d7c-98cb-43a3d97ce0a9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019c1e47-dee6-703b-a01f-6084500168f6" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019c1e47-dee6-7d7c-98cb-43a3d97ce0a9" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019c1e47-dee6-703b-a01f-6084500168f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e47-dee6-703b-a01f-6084500168f6_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019c1e47-dee6-703b-a01f-6084500168f6" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e47-dee6-703b-a01f-6084500168f6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e47-dee6-7a17-a1d5-a4b9d87a4107" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019c1e47-dee6-703b-a01f-6084500168f6" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e47-dee6-7a17-a1d5-a4b9d87a4107" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_RenaissanceWorthingtonMember_019c1e47-dee6-7f39-b1ab-3f47febc296f" xlink:href="drh-20251231.xsd#drh_RenaissanceWorthingtonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e47-dee6-7a17-a1d5-a4b9d87a4107" xlink:to="loc_drh_RenaissanceWorthingtonMember_019c1e47-dee6-7f39-b1ab-3f47febc296f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelClioMortgageLoanMember_019c1e47-dee6-728d-b35e-2808c0c8acfc" xlink:href="drh-20251231.xsd#drh_HotelClioMortgageLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e47-dee6-7a17-a1d5-a4b9d87a4107" xlink:to="loc_drh_HotelClioMortgageLoanMember_019c1e47-dee6-728d-b35e-2808c0c8acfc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_WestinBostonSeaportDistrictMember_019c1e47-dee6-7899-8815-64a6be15b788" xlink:href="drh-20251231.xsd#drh_WestinBostonSeaportDistrictMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019c1e47-dee6-7a17-a1d5-a4b9d87a4107" xlink:to="loc_drh_WestinBostonSeaportDistrictMember_019c1e47-dee6-7899-8815-64a6be15b788" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019c1e47-dee6-781d-9fbb-ef530bb56870" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019c1e47-dee6-7d7c-98cb-43a3d97ce0a9" xlink:to="loc_us-gaap_DebtInstrumentAxis_019c1e47-dee6-781d-9fbb-ef530bb56870" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-781d-9fbb-ef530bb56870_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c1e47-dee6-781d-9fbb-ef530bb56870" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-781d-9fbb-ef530bb56870_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-7301-8f8d-317875aa231a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c1e47-dee6-781d-9fbb-ef530bb56870" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-7301-8f8d-317875aa231a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanDueJanuary2026Member_019c1e47-dee6-7713-986c-d6b2866a79a3" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanDueJanuary2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-7301-8f8d-317875aa231a" xlink:to="loc_drh_UnsecuredTermLoanDueJanuary2026Member_019c1e47-dee6-7713-986c-d6b2866a79a3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanOneDueJanuary2028Member_019c1e47-dee6-71b5-b45a-bd9853fee9cb" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanOneDueJanuary2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-7301-8f8d-317875aa231a" xlink:to="loc_drh_UnsecuredTermLoanOneDueJanuary2028Member_019c1e47-dee6-71b5-b45a-bd9853fee9cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanDueJanuary2029Member_019c1e47-dee6-7b91-bdc8-4e3ad9e9d1e0" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanDueJanuary2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-7301-8f8d-317875aa231a" xlink:to="loc_drh_UnsecuredTermLoanDueJanuary2029Member_019c1e47-dee6-7b91-bdc8-4e3ad9e9d1e0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanDueJanuary2030Member_019c1e47-dee6-71d5-a5e9-a999a86412d4" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanDueJanuary2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-7301-8f8d-317875aa231a" xlink:to="loc_drh_UnsecuredTermLoanDueJanuary2030Member_019c1e47-dee6-71d5-a5e9-a999a86412d4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_SeniorUnsecuredCreditFacilityMember_019c1e47-dee6-7d9b-b3b2-afc493b4fe52" xlink:href="drh-20251231.xsd#drh_SeniorUnsecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-7301-8f8d-317875aa231a" xlink:to="loc_drh_SeniorUnsecuredCreditFacilityMember_019c1e47-dee6-7d9b-b3b2-afc493b4fe52" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_TermLoanFacilitiesMember_019c1eb1-a886-70a3-a7c6-96ffc51a8d1a" xlink:href="drh-20251231.xsd#drh_TermLoanFacilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e47-dee6-7301-8f8d-317875aa231a" xlink:to="loc_drh_TermLoanFacilitiesMember_019c1eb1-a886-70a3-a7c6-96ffc51a8d1a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019c1e47-dee6-7d73-9e03-4483e4093005" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019c1e47-dee6-7d7c-98cb-43a3d97ce0a9" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019c1e47-dee6-7d73-9e03-4483e4093005" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c1e47-dee6-7d73-9e03-4483e4093005_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019c1e47-dee6-7d73-9e03-4483e4093005" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c1e47-dee6-7d73-9e03-4483e4093005_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c1e47-dee6-71e7-91d0-f995d324e072" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019c1e47-dee6-7d73-9e03-4483e4093005" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c1e47-dee6-71e7-91d0-f995d324e072" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MortgagesMember_019c1e47-dee6-7639-8ba6-b570331c2708" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MortgagesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c1e47-dee6-71e7-91d0-f995d324e072" xlink:to="loc_us-gaap_MortgagesMember_019c1e47-dee6-7639-8ba6-b570331c2708" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanMember_019c1e47-dee6-700e-a1d2-2389672fe4f3" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c1e47-dee6-71e7-91d0-f995d324e072" xlink:to="loc_drh_UnsecuredTermLoanMember_019c1e47-dee6-700e-a1d2-2389672fe4f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019c1e47-dee6-720a-a6a5-7c723ff1636b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c1e47-dee6-71e7-91d0-f995d324e072" xlink:to="loc_us-gaap_LineOfCreditMember_019c1e47-dee6-720a-a6a5-7c723ff1636b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019c1e47-dee6-7c4d-aa7f-17900042a49b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019c1e47-dee6-7d7c-98cb-43a3d97ce0a9" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019c1e47-dee6-7c4d-aa7f-17900042a49b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019c1e47-dee6-7c4d-aa7f-17900042a49b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019c1e47-dee6-7c4d-aa7f-17900042a49b" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019c1e47-dee6-7c4d-aa7f-17900042a49b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019c1e47-dee6-7919-8059-cdf2de2ff6aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019c1e47-dee6-7c4d-aa7f-17900042a49b" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019c1e47-dee6-7919-8059-cdf2de2ff6aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019c1e47-dee6-70e6-8871-44d81e2ac9d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019c1e47-dee6-7919-8059-cdf2de2ff6aa" xlink:to="loc_us-gaap_InterestRateSwapMember_019c1e47-dee6-70e6-8871-44d81e2ac9d4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019c1eb1-a886-7256-930a-99ddd4c20e07" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019c1e47-dee6-7d7c-98cb-43a3d97ce0a9" xlink:to="loc_us-gaap_CreditFacilityAxis_019c1eb1-a886-7256-930a-99ddd4c20e07" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019c1eb1-a886-7256-930a-99ddd4c20e07_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019c1eb1-a886-7256-930a-99ddd4c20e07" xlink:to="loc_us-gaap_CreditFacilityDomain_019c1eb1-a886-7256-930a-99ddd4c20e07_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019c1eb1-a886-7abd-b970-e855605cdc87" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019c1eb1-a886-7256-930a-99ddd4c20e07" xlink:to="loc_us-gaap_CreditFacilityDomain_019c1eb1-a886-7abd-b970-e855605cdc87" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019c1eb1-a886-7be3-8977-d38288fa489b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019c1eb1-a886-7abd-b970-e855605cdc87" xlink:to="loc_us-gaap_SecuredDebtMember_019c1eb1-a886-7be3-8977-d38288fa489b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019c1e47-dee6-70b4-a544-2b7fd6fba638" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019c1e47-dee6-70b4-a544-2b7fd6fba638" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019c1e47-dee6-7666-bc8d-1895c19489a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019c1e47-dee6-7666-bc8d-1895c19489a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019c1e47-dee6-7bd4-9ab5-281e7dd0e294" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019c1e47-dee6-7bd4-9ab5-281e7dd0e294" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_019c1e47-dee6-72eb-978b-09706b7bc155" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_us-gaap_LineOfCredit_019c1e47-dee6-72eb-978b-09706b7bc155" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019c1e47-dee6-7e52-8dc0-b0da6e476c67" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019c1e47-dee6-7e52-8dc0-b0da6e476c67" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019c1e47-dee6-7538-a0a0-ce1a3cd5ef75" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_us-gaap_LongTermDebt_019c1e47-dee6-7538-a0a0-ce1a3cd5ef75" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtWeightedAverageInterestRate_019c1e47-dee6-7f38-bf42-c9f501e838a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_us-gaap_LongtermDebtWeightedAverageInterestRate_019c1e47-dee6-7f38-bf42-c9f501e838a3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019c1e47-dee6-7e35-b563-70de250dfe99" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019c1e47-dee6-7e35-b563-70de250dfe99" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityNumberOfFacilities_019c1eb1-a886-7c1d-998f-6c51355dd035" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityNumberOfFacilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_drh_LineOfCreditFacilityNumberOfFacilities_019c1eb1-a886-7c1d-998f-6c51355dd035" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DebtInstrumentNumberOfExtensions_019c1eb1-a886-7ed9-a49b-cbcdbfbc607b" xlink:href="drh-20251231.xsd#drh_DebtInstrumentNumberOfExtensions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_drh_DebtInstrumentNumberOfExtensions_019c1eb1-a886-7ed9-a49b-cbcdbfbc607b" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DebtInstrumentExtensionPeriod_019c1eb1-a886-73c4-ac1f-ed5dbe53635b" xlink:href="drh-20251231.xsd#drh_DebtInstrumentExtensionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c1e47-dee6-7878-ad4c-0d5936d0f55b" xlink:to="loc_drh_DebtInstrumentExtensionPeriod_019c1eb1-a886-73c4-ac1f-ed5dbe53635b" xlink:type="arc" order="10"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/DebtSeniorUnsecuredCreditFacilityandUnsecuredTermLoansDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#DebtSeniorUnsecuredCreditFacilityandUnsecuredTermLoansDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/DebtSeniorUnsecuredCreditFacilityandUnsecuredTermLoansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_019c1e53-f0b2-7e15-9240-aa6934c80241" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_019c1e53-f0b2-7e15-9240-aa6934c80241" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019c1e53-f0b2-724f-85dc-617eab0dcd8f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019c1e53-f0b2-7e15-9240-aa6934c80241" xlink:to="loc_us-gaap_DebtInstrumentAxis_019c1e53-f0b2-724f-85dc-617eab0dcd8f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c1e53-f0b2-724f-85dc-617eab0dcd8f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c1e53-f0b2-724f-85dc-617eab0dcd8f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c1e53-f0b2-724f-85dc-617eab0dcd8f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c1e53-f0b2-73c4-8e0a-90b5caf1d215" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c1e53-f0b2-724f-85dc-617eab0dcd8f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c1e53-f0b2-73c4-8e0a-90b5caf1d215" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_SeniorUnsecuredCreditFacilityMember_019c1e53-f0b2-7233-8089-237fe2f74b22" xlink:href="drh-20251231.xsd#drh_SeniorUnsecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e53-f0b2-73c4-8e0a-90b5caf1d215" xlink:to="loc_drh_SeniorUnsecuredCreditFacilityMember_019c1e53-f0b2-7233-8089-237fe2f74b22" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_TermLoanFacilitiesMember_019c1e53-f0b2-7ecf-8e00-3814e76d08d5" xlink:href="drh-20251231.xsd#drh_TermLoanFacilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e53-f0b2-73c4-8e0a-90b5caf1d215" xlink:to="loc_drh_TermLoanFacilitiesMember_019c1e53-f0b2-7ecf-8e00-3814e76d08d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanOneDueJanuary2028Member_019c1e53-f0b2-7fde-ad07-bc6337fb19cb" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanOneDueJanuary2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e53-f0b2-73c4-8e0a-90b5caf1d215" xlink:to="loc_drh_UnsecuredTermLoanOneDueJanuary2028Member_019c1e53-f0b2-7fde-ad07-bc6337fb19cb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanDueJanuary2030Member_019c1e53-f0b2-7a91-a4e9-c1074fa2b0d5" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanDueJanuary2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e53-f0b2-73c4-8e0a-90b5caf1d215" xlink:to="loc_drh_UnsecuredTermLoanDueJanuary2030Member_019c1e53-f0b2-7a91-a4e9-c1074fa2b0d5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanDueJanuary2026Member_019c1e53-f0b2-73b3-929a-9eaa6b65c38d" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanDueJanuary2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e53-f0b2-73c4-8e0a-90b5caf1d215" xlink:to="loc_drh_UnsecuredTermLoanDueJanuary2026Member_019c1e53-f0b2-73b3-929a-9eaa6b65c38d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019c1e53-f0b2-770b-9d01-d9f0181f7379" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019c1e53-f0b2-7e15-9240-aa6934c80241" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019c1e53-f0b2-770b-9d01-d9f0181f7379" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c1e53-f0b2-770b-9d01-d9f0181f7379_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019c1e53-f0b2-770b-9d01-d9f0181f7379" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c1e53-f0b2-770b-9d01-d9f0181f7379_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c1e53-f0b2-7ccf-8ccb-1560407b33ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019c1e53-f0b2-770b-9d01-d9f0181f7379" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c1e53-f0b2-7ccf-8ccb-1560407b33ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019c1e53-f0b2-793c-81fa-375e764a61f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c1e53-f0b2-7ccf-8ccb-1560407b33ee" xlink:to="loc_us-gaap_LineOfCreditMember_019c1e53-f0b2-793c-81fa-375e764a61f6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanMember_019c1e53-f0b2-7cd9-81e1-8254d85caf7b" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c1e53-f0b2-7ccf-8ccb-1560407b33ee" xlink:to="loc_drh_UnsecuredTermLoanMember_019c1e53-f0b2-7cd9-81e1-8254d85caf7b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019c1e53-f0b2-7f69-8092-159c4d9a3898" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019c1e53-f0b2-7e15-9240-aa6934c80241" xlink:to="loc_us-gaap_CreditFacilityAxis_019c1e53-f0b2-7f69-8092-159c4d9a3898" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019c1e53-f0b2-7f69-8092-159c4d9a3898_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019c1e53-f0b2-7f69-8092-159c4d9a3898" xlink:to="loc_us-gaap_CreditFacilityDomain_019c1e53-f0b2-7f69-8092-159c4d9a3898_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019c1e53-f0b2-7e4d-890a-8cbb929df768" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019c1e53-f0b2-7f69-8092-159c4d9a3898" xlink:to="loc_us-gaap_CreditFacilityDomain_019c1e53-f0b2-7e4d-890a-8cbb929df768" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019c1e53-f0b2-7f67-89b0-8a3ec7805c66" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019c1e53-f0b2-7e4d-890a-8cbb929df768" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019c1e53-f0b2-7f67-89b0-8a3ec7805c66" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019c1e53-f0b2-7ecf-82be-0824aa25d0c8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019c1e53-f0b2-7e4d-890a-8cbb929df768" xlink:to="loc_us-gaap_SecuredDebtMember_019c1e53-f0b2-7ecf-82be-0824aa25d0c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_019c1e53-f0b2-7829-9b64-cd9042dfa01f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019c1e53-f0b2-7e15-9240-aa6934c80241" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_019c1e53-f0b2-7829-9b64-cd9042dfa01f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_019c1e53-f0b2-7829-9b64-cd9042dfa01f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_019c1e53-f0b2-7829-9b64-cd9042dfa01f" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_019c1e53-f0b2-7829-9b64-cd9042dfa01f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_019c1e53-f0b2-709b-9dd0-71420d5ae163" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_019c1e53-f0b2-7829-9b64-cd9042dfa01f" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_019c1e53-f0b2-709b-9dd0-71420d5ae163" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_019c1e53-f0b2-7685-97d2-f50b3930610f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_019c1e53-f0b2-709b-9dd0-71420d5ae163" xlink:to="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_019c1e53-f0b2-7685-97d2-f50b3930610f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019c1e53-f0b2-7d12-aa64-5b693dbb1bcf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019c1e53-f0b2-7d12-aa64-5b693dbb1bcf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityNumberOfFacilities_019c1e53-f0b2-71cb-be96-287c666a0136" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityNumberOfFacilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_drh_LineOfCreditFacilityNumberOfFacilities_019c1e53-f0b2-71cb-be96-287c666a0136" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019c1e53-f0b2-7e86-a898-b9650dc30dbb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019c1e53-f0b2-7e86-a898-b9650dc30dbb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption_019c1e53-f0b2-7e52-9858-e81fdf0c13cf" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_drh_LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption_019c1e53-f0b2-7e52-9858-e81fdf0c13cf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_019c1e53-f0b2-7478-964c-a4fde02f24a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_019c1e53-f0b2-7478-964c-a4fde02f24a2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019c1e53-f0b2-775c-a11f-6321da9e0d7a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019c1e53-f0b2-775c-a11f-6321da9e0d7a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DebtInstrumentNumberOfExtensions_019c1e53-f0b2-77e8-86dc-d7444e6448dc" xlink:href="drh-20251231.xsd#drh_DebtInstrumentNumberOfExtensions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_drh_DebtInstrumentNumberOfExtensions_019c1e53-f0b2-77e8-86dc-d7444e6448dc" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DebtInstrumentExtensionPeriod_019c1e53-f0b2-7868-ad5d-a0f2712ec372" xlink:href="drh-20251231.xsd#drh_DebtInstrumentExtensionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_drh_DebtInstrumentExtensionPeriod_019c1e53-f0b2-7868-ad5d-a0f2712ec372" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_NumberOfMortgageLoansMatured_019c1e53-f0b2-70ce-8a03-af5af115aa73" xlink:href="drh-20251231.xsd#drh_NumberOfMortgageLoansMatured"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_drh_NumberOfMortgageLoansMatured_019c1e53-f0b2-70ce-8a03-af5af115aa73" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_019c1e53-f0b2-7e2e-94f4-7757c831b15a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_019c1e53-f0b2-7e2e-94f4-7757c831b15a" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019c1e53-f0b2-7276-9ee4-a02653d84d78" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019c1e53-f0b2-7276-9ee4-a02653d84d78" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet_019c1e53-f0b2-7d3c-8c13-38c35e8826dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet_019c1e53-f0b2-7d3c-8c13-38c35e8826dd" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_019c1e53-f0b2-76db-a3cb-56eab8bf3f36" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnamortizedDebtIssuanceExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019c1e53-f0b2-7df9-bce8-eb8bd5bef91a" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_019c1e53-f0b2-76db-a3cb-56eab8bf3f36" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/DebtScheduleofApplicableMarginDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#DebtScheduleofApplicableMarginDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/DebtScheduleofApplicableMarginDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_4124cea3-0641-4972-9c94-0b0c59bf7e39" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_53cd97d8-c2bd-4a2f-a0a7-0ad2efcc1e5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_4124cea3-0641-4972-9c94-0b0c59bf7e39" xlink:to="loc_us-gaap_DebtInstrumentTable_53cd97d8-c2bd-4a2f-a0a7-0ad2efcc1e5a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityLeverageRangeAxis_883cba5c-d30c-42e3-8608-c26f619e41ec" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityLeverageRangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_53cd97d8-c2bd-4a2f-a0a7-0ad2efcc1e5a" xlink:to="loc_drh_LineOfCreditFacilityLeverageRangeAxis_883cba5c-d30c-42e3-8608-c26f619e41ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityLeverageRangeDomain_883cba5c-d30c-42e3-8608-c26f619e41ec_default" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityLeverageRangeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_drh_LineOfCreditFacilityLeverageRangeAxis_883cba5c-d30c-42e3-8608-c26f619e41ec" xlink:to="loc_drh_LineOfCreditFacilityLeverageRangeDomain_883cba5c-d30c-42e3-8608-c26f619e41ec_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityLeverageRangeDomain_4bbf82fb-5451-4bef-ae44-9683d81f3fbe" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityLeverageRangeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_drh_LineOfCreditFacilityLeverageRangeAxis_883cba5c-d30c-42e3-8608-c26f619e41ec" xlink:to="loc_drh_LineOfCreditFacilityLeverageRangeDomain_4bbf82fb-5451-4bef-ae44-9683d81f3fbe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LeverageRangeOneMember_996aa281-cf5c-4269-bf30-4bc8588607b7" xlink:href="drh-20251231.xsd#drh_LeverageRangeOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_LineOfCreditFacilityLeverageRangeDomain_4bbf82fb-5451-4bef-ae44-9683d81f3fbe" xlink:to="loc_drh_LeverageRangeOneMember_996aa281-cf5c-4269-bf30-4bc8588607b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LeverageRangeTwoMember_454cde63-e3b6-4937-9345-49539c2f8c8e" xlink:href="drh-20251231.xsd#drh_LeverageRangeTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_LineOfCreditFacilityLeverageRangeDomain_4bbf82fb-5451-4bef-ae44-9683d81f3fbe" xlink:to="loc_drh_LeverageRangeTwoMember_454cde63-e3b6-4937-9345-49539c2f8c8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LeverageRangeThreeMember_57fa4b0a-c466-40c9-b4cc-49cc73da1782" xlink:href="drh-20251231.xsd#drh_LeverageRangeThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_LineOfCreditFacilityLeverageRangeDomain_4bbf82fb-5451-4bef-ae44-9683d81f3fbe" xlink:to="loc_drh_LeverageRangeThreeMember_57fa4b0a-c466-40c9-b4cc-49cc73da1782" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LeverageRangeFourMember_705526f2-73a9-4234-9858-3883c1513cd2" xlink:href="drh-20251231.xsd#drh_LeverageRangeFourMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_LineOfCreditFacilityLeverageRangeDomain_4bbf82fb-5451-4bef-ae44-9683d81f3fbe" xlink:to="loc_drh_LeverageRangeFourMember_705526f2-73a9-4234-9858-3883c1513cd2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LeverageRangeFiveMember_75e77452-e8bb-4c2d-920c-968ac55d58d4" xlink:href="drh-20251231.xsd#drh_LeverageRangeFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_LineOfCreditFacilityLeverageRangeDomain_4bbf82fb-5451-4bef-ae44-9683d81f3fbe" xlink:to="loc_drh_LeverageRangeFiveMember_75e77452-e8bb-4c2d-920c-968ac55d58d4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LeverageRangeSixMember_f937481e-7ab5-472a-84d4-0893bbfec08f" xlink:href="drh-20251231.xsd#drh_LeverageRangeSixMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_LineOfCreditFacilityLeverageRangeDomain_4bbf82fb-5451-4bef-ae44-9683d81f3fbe" xlink:to="loc_drh_LeverageRangeSixMember_f937481e-7ab5-472a-84d4-0893bbfec08f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LeverageRangeSevenMember_af2d9680-412c-4f63-9a48-18b132985ba3" xlink:href="drh-20251231.xsd#drh_LeverageRangeSevenMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_LineOfCreditFacilityLeverageRangeDomain_4bbf82fb-5451-4bef-ae44-9683d81f3fbe" xlink:to="loc_drh_LeverageRangeSevenMember_af2d9680-412c-4f63-9a48-18b132985ba3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_5c7a2f82-a9cc-4c60-a3df-69efce7313ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_53cd97d8-c2bd-4a2f-a0a7-0ad2efcc1e5a" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_5c7a2f82-a9cc-4c60-a3df-69efce7313ce" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_5c7a2f82-a9cc-4c60-a3df-69efce7313ce_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_5c7a2f82-a9cc-4c60-a3df-69efce7313ce" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_5c7a2f82-a9cc-4c60-a3df-69efce7313ce_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_c60de49a-de63-4b56-ae33-015ff6091056" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_5c7a2f82-a9cc-4c60-a3df-69efce7313ce" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_c60de49a-de63-4b56-ae33-015ff6091056" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_a20e9a07-626f-4b0c-b264-54776d0fc22e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_c60de49a-de63-4b56-ae33-015ff6091056" xlink:to="loc_us-gaap_LineOfCreditMember_a20e9a07-626f-4b0c-b264-54776d0fc22e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanMember_a13c326e-9cdb-456c-aa79-e86d252426fc" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_c60de49a-de63-4b56-ae33-015ff6091056" xlink:to="loc_drh_UnsecuredTermLoanMember_a13c326e-9cdb-456c-aa79-e86d252426fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_c187e49e-da8b-49dc-ab9a-eaa8f6d13b48" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_4124cea3-0641-4972-9c94-0b0c59bf7e39" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_c187e49e-da8b-49dc-ab9a-eaa8f6d13b48" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/DebtScheduleofDebtCovenantsDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#DebtScheduleofDebtCovenantsDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/DebtScheduleofDebtCovenantsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_ca661e0f-63bd-494b-b80d-be28772b0ddb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_a5a0af42-ed7a-4843-b374-1c7c6a5323d3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_ca661e0f-63bd-494b-b80d-be28772b0ddb" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_a5a0af42-ed7a-4843-b374-1c7c6a5323d3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DebtInstrumentCovenantAxis_dd21dfce-1b0e-4f5a-a648-a959b74db23a" xlink:href="drh-20251231.xsd#drh_DebtInstrumentCovenantAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a5a0af42-ed7a-4843-b374-1c7c6a5323d3" xlink:to="loc_drh_DebtInstrumentCovenantAxis_dd21dfce-1b0e-4f5a-a648-a959b74db23a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DebtInstrumentCovenantDomain_dd21dfce-1b0e-4f5a-a648-a959b74db23a_default" xlink:href="drh-20251231.xsd#drh_DebtInstrumentCovenantDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_drh_DebtInstrumentCovenantAxis_dd21dfce-1b0e-4f5a-a648-a959b74db23a" xlink:to="loc_drh_DebtInstrumentCovenantDomain_dd21dfce-1b0e-4f5a-a648-a959b74db23a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DebtInstrumentCovenantDomain_aa8b44f7-867b-4eb4-8419-60af632ceaa3" xlink:href="drh-20251231.xsd#drh_DebtInstrumentCovenantDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_drh_DebtInstrumentCovenantAxis_dd21dfce-1b0e-4f5a-a648-a959b74db23a" xlink:to="loc_drh_DebtInstrumentCovenantDomain_aa8b44f7-867b-4eb4-8419-60af632ceaa3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_OriginalCovenantMember_425125cb-0c4c-45c1-b309-a20f5fafb787" xlink:href="drh-20251231.xsd#drh_OriginalCovenantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_DebtInstrumentCovenantDomain_aa8b44f7-867b-4eb4-8419-60af632ceaa3" xlink:to="loc_drh_OriginalCovenantMember_425125cb-0c4c-45c1-b309-a20f5fafb787" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ActualComparedToCovenantMember_4088b6c1-1095-430b-ac1b-5d1f64b75bd8" xlink:href="drh-20251231.xsd#drh_ActualComparedToCovenantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_DebtInstrumentCovenantDomain_aa8b44f7-867b-4eb4-8419-60af632ceaa3" xlink:to="loc_drh_ActualComparedToCovenantMember_4088b6c1-1095-430b-ac1b-5d1f64b75bd8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_63304408-eb1a-4b11-ad44-57f633ba9bc3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a5a0af42-ed7a-4843-b374-1c7c6a5323d3" xlink:to="loc_us-gaap_DebtInstrumentAxis_63304408-eb1a-4b11-ad44-57f633ba9bc3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_63304408-eb1a-4b11-ad44-57f633ba9bc3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_63304408-eb1a-4b11-ad44-57f633ba9bc3" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_63304408-eb1a-4b11-ad44-57f633ba9bc3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_fb241289-bfea-46e8-9925-34aebc03e532" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_63304408-eb1a-4b11-ad44-57f633ba9bc3" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_fb241289-bfea-46e8-9925-34aebc03e532" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_SeniorUnsecuredCreditFacilityAndUnsecuredTermLoansMember_72d9b8f8-f124-4e80-93bd-516881568283" xlink:href="drh-20251231.xsd#drh_SeniorUnsecuredCreditFacilityAndUnsecuredTermLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_fb241289-bfea-46e8-9925-34aebc03e532" xlink:to="loc_drh_SeniorUnsecuredCreditFacilityAndUnsecuredTermLoansMember_72d9b8f8-f124-4e80-93bd-516881568283" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityMaximumLeverageRatio_87d1e322-6cc0-4d1e-818c-53242db7600d" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityMaximumLeverageRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_ca661e0f-63bd-494b-b80d-be28772b0ddb" xlink:to="loc_drh_LineOfCreditFacilityMaximumLeverageRatio_87d1e322-6cc0-4d1e-818c-53242db7600d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityMinimumFixedChargeCoverageRatio_4bea7930-e17b-4d89-85f6-a14d9a240f79" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityMinimumFixedChargeCoverageRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_ca661e0f-63bd-494b-b80d-be28772b0ddb" xlink:to="loc_drh_LineOfCreditFacilityMinimumFixedChargeCoverageRatio_4bea7930-e17b-4d89-85f6-a14d9a240f79" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DebtInstrumentSecuredRecourseIndebtednessRatio_fa202936-c94a-4d29-8a18-408ae22dd47c" xlink:href="drh-20251231.xsd#drh_DebtInstrumentSecuredRecourseIndebtednessRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_ca661e0f-63bd-494b-b80d-be28772b0ddb" xlink:to="loc_drh_DebtInstrumentSecuredRecourseIndebtednessRatio_fa202936-c94a-4d29-8a18-408ae22dd47c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityUnencumberedLeverageRatio_651dcd2a-43a5-403d-aeb1-06fc2e1e446f" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityUnencumberedLeverageRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_ca661e0f-63bd-494b-b80d-be28772b0ddb" xlink:to="loc_drh_LineOfCreditFacilityUnencumberedLeverageRatio_651dcd2a-43a5-403d-aeb1-06fc2e1e446f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LineOfCreditFacilityUnencumberedImpliedDebtServiceCoverageRatio_ebb35fe3-e95d-4df3-8bfe-0d2c8dcb466b" xlink:href="drh-20251231.xsd#drh_LineOfCreditFacilityUnencumberedImpliedDebtServiceCoverageRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_ca661e0f-63bd-494b-b80d-be28772b0ddb" xlink:to="loc_drh_LineOfCreditFacilityUnencumberedImpliedDebtServiceCoverageRatio_ebb35fe3-e95d-4df3-8bfe-0d2c8dcb466b" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/DebtScheduleofComponentsofInterestExpenseDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#DebtScheduleofComponentsofInterestExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/DebtScheduleofComponentsofInterestExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_482f2ea6-b738-4d52-a511-324464315b72" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_7d5ca518-325d-442c-b812-ea32a6538513" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_482f2ea6-b738-4d52-a511-324464315b72" xlink:to="loc_us-gaap_DebtInstrumentTable_7d5ca518-325d-442c-b812-ea32a6538513" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_36326dcb-2c43-4df6-89ac-5e6f57c010c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7d5ca518-325d-442c-b812-ea32a6538513" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_36326dcb-2c43-4df6-89ac-5e6f57c010c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_36326dcb-2c43-4df6-89ac-5e6f57c010c7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_36326dcb-2c43-4df6-89ac-5e6f57c010c7" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_36326dcb-2c43-4df6-89ac-5e6f57c010c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_51c95f37-3b25-4e3d-ac5a-93f9efa01aac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_36326dcb-2c43-4df6-89ac-5e6f57c010c7" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_51c95f37-3b25-4e3d-ac5a-93f9efa01aac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanInterestMember_eee777d3-a2f9-43b7-8b4e-931d4d81d657" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_51c95f37-3b25-4e3d-ac5a-93f9efa01aac" xlink:to="loc_drh_UnsecuredTermLoanInterestMember_eee777d3-a2f9-43b7-8b4e-931d4d81d657" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_MortgageDebtInterestMember_3747aaa9-6b79-4304-890d-2264b2d2e931" xlink:href="drh-20251231.xsd#drh_MortgageDebtInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_51c95f37-3b25-4e3d-ac5a-93f9efa01aac" xlink:to="loc_drh_MortgageDebtInterestMember_3747aaa9-6b79-4304-890d-2264b2d2e931" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CreditFacilityInterestAndUnusedFeesMember_e05e497e-ff19-4563-87e9-2b26ce0eefaa" xlink:href="drh-20251231.xsd#drh_CreditFacilityInterestAndUnusedFeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_51c95f37-3b25-4e3d-ac5a-93f9efa01aac" xlink:to="loc_drh_CreditFacilityInterestAndUnusedFeesMember_e05e497e-ff19-4563-87e9-2b26ce0eefaa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_bc0bcab6-285d-497d-b8b2-6efd4a57d7dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_482f2ea6-b738-4d52-a511-324464315b72" xlink:to="loc_us-gaap_InterestExpenseDebt_bc0bcab6-285d-497d-b8b2-6efd4a57d7dd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_0f8508be-6253-440d-844f-12498c0a1c27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_482f2ea6-b738-4d52-a511-324464315b72" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_0f8508be-6253-440d-844f-12498c0a1c27" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_InterestExpenseIncomeTradingLiabilities_bb4900d5-591c-4c96-9252-713b16277adb" xlink:href="drh-20251231.xsd#drh_InterestExpenseIncomeTradingLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_482f2ea6-b738-4d52-a511-324464315b72" xlink:to="loc_drh_InterestExpenseIncomeTradingLiabilities_bb4900d5-591c-4c96-9252-713b16277adb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_FinanceLeaseExpense_709e7542-c384-47a7-8746-01b2fd9738d0" xlink:href="drh-20251231.xsd#drh_FinanceLeaseExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_482f2ea6-b738-4d52-a511-324464315b72" xlink:to="loc_drh_FinanceLeaseExpense_709e7542-c384-47a7-8746-01b2fd9738d0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_265482e5-c80f-4b87-b360-268b5c9ba224" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_482f2ea6-b738-4d52-a511-324464315b72" xlink:to="loc_us-gaap_InterestExpenseNonoperating_265482e5-c80f-4b87-b360-268b5c9ba224" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/DerivativesScheduleofDerivativesDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#DerivativesScheduleofDerivativesDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/DerivativesScheduleofDerivativesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019c1e63-72d0-7ea9-b972-5f0e560b76cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019c1e63-72d0-7525-8bae-b0a18be919e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019c1e63-72d0-7ea9-b972-5f0e560b76cf" xlink:to="loc_us-gaap_DerivativeTable_019c1e63-72d0-7525-8bae-b0a18be919e7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019c1e63-72d0-72a9-a50a-152a649e7884" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019c1e63-72d0-7525-8bae-b0a18be919e7" xlink:to="loc_us-gaap_DebtInstrumentAxis_019c1e63-72d0-72a9-a50a-152a649e7884" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-72a9-a50a-152a649e7884_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c1e63-72d0-72a9-a50a-152a649e7884" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-72a9-a50a-152a649e7884_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c1e63-72d0-72a9-a50a-152a649e7884" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanOneDueJanuary2028Member_019c1e63-72d0-7b73-8e3f-3fda3fb5e194" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanOneDueJanuary2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:to="loc_drh_UnsecuredTermLoanOneDueJanuary2028Member_019c1e63-72d0-7b73-8e3f-3fda3fb5e194" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanOneDueJanuary2027Member_019c1e63-72d0-78b2-939d-03220f51169f" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanOneDueJanuary2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:to="loc_drh_UnsecuredTermLoanOneDueJanuary2027Member_019c1e63-72d0-78b2-939d-03220f51169f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanTwoDueJanuary2028Member_019c1e63-72d0-7636-bb0c-f890a425f548" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanTwoDueJanuary2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:to="loc_drh_UnsecuredTermLoanTwoDueJanuary2028Member_019c1e63-72d0-7636-bb0c-f890a425f548" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanThreeDueJanuary2028Member_019c1e63-72d0-7bba-8ec4-91e156336abd" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanThreeDueJanuary2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:to="loc_drh_UnsecuredTermLoanThreeDueJanuary2028Member_019c1e63-72d0-7bba-8ec4-91e156336abd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanTwoDueJanuary2027Member_019c1e63-72d0-74b0-bd7e-7abdf0684834" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanTwoDueJanuary2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:to="loc_drh_UnsecuredTermLoanTwoDueJanuary2027Member_019c1e63-72d0-74b0-bd7e-7abdf0684834" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanDueJanuary2026Member_019c1e63-72d0-7526-af1c-a5a322848ea3" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanDueJanuary2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:to="loc_drh_UnsecuredTermLoanDueJanuary2026Member_019c1e63-72d0-7526-af1c-a5a322848ea3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanOneDueJanuary2029Member_019c1e64-0649-7914-9c57-182800ec555e" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanOneDueJanuary2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:to="loc_drh_UnsecuredTermLoanOneDueJanuary2029Member_019c1e64-0649-7914-9c57-182800ec555e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnsecuredTermLoanTwoDueJanuary2029Member_019c1e64-0649-74e6-92e6-559b53ac3cf4" xlink:href="drh-20251231.xsd#drh_UnsecuredTermLoanTwoDueJanuary2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c1e63-72d0-7978-9bad-7389e10d0936" xlink:to="loc_drh_UnsecuredTermLoanTwoDueJanuary2029Member_019c1e64-0649-74e6-92e6-559b53ac3cf4" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019c1e63-72d0-7145-be23-1f730f08f845" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019c1e63-72d0-7525-8bae-b0a18be919e7" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019c1e63-72d0-7145-be23-1f730f08f845" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019c1e63-72d0-7145-be23-1f730f08f845_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019c1e63-72d0-7145-be23-1f730f08f845" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019c1e63-72d0-7145-be23-1f730f08f845_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019c1e63-72d0-7da5-a313-ed2fba6c0dae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019c1e63-72d0-7145-be23-1f730f08f845" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019c1e63-72d0-7da5-a313-ed2fba6c0dae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019c1e63-72d0-7420-bfb4-d80dd7a7a779" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019c1e63-72d0-7da5-a313-ed2fba6c0dae" xlink:to="loc_us-gaap_InterestRateSwapMember_019c1e63-72d0-7420-bfb4-d80dd7a7a779" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019c1e63-72d0-7e2d-8ea2-441f06bf0b01" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019c1e63-72d0-7525-8bae-b0a18be919e7" xlink:to="loc_us-gaap_HedgingDesignationAxis_019c1e63-72d0-7e2d-8ea2-441f06bf0b01" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019c1e63-72d0-7e2d-8ea2-441f06bf0b01_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019c1e63-72d0-7e2d-8ea2-441f06bf0b01" xlink:to="loc_us-gaap_HedgingDesignationDomain_019c1e63-72d0-7e2d-8ea2-441f06bf0b01_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019c1e63-72d0-7509-b01a-e93b9b5d0e65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019c1e63-72d0-7e2d-8ea2-441f06bf0b01" xlink:to="loc_us-gaap_HedgingDesignationDomain_019c1e63-72d0-7509-b01a-e93b9b5d0e65" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_019c1e63-72d0-789f-85a9-9af397b86fd6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019c1e63-72d0-7509-b01a-e93b9b5d0e65" xlink:to="loc_us-gaap_NondesignatedMember_019c1e63-72d0-789f-85a9-9af397b86fd6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFixedInterestRate_019c1e63-72d0-715e-995d-3efb053dfabb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeFixedInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019c1e63-72d0-7ea9-b972-5f0e560b76cf" xlink:to="loc_us-gaap_DerivativeFixedInterestRate_019c1e63-72d0-715e-995d-3efb053dfabb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019c1e63-72d0-7688-ad6d-b1b0b79e5612" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019c1e63-72d0-7ea9-b972-5f0e560b76cf" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019c1e63-72d0-7688-ad6d-b1b0b79e5612" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_019c1e63-72d0-7246-858b-5514fdf4662a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019c1e63-72d0-7ea9-b972-5f0e560b76cf" xlink:to="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_019c1e63-72d0-7246-858b-5514fdf4662a" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/DerivativesScheduleofGainsandLossesRecognizedonDerivativeFinancialStatementsDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#DerivativesScheduleofGainsandLossesRecognizedonDerivativeFinancialStatementsDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/DerivativesScheduleofGainsandLossesRecognizedonDerivativeFinancialStatementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_3e58c758-84ae-4111-9169-0c48283177bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_39ee1153-4361-4732-8248-d2d0e649a030" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_3e58c758-84ae-4111-9169-0c48283177bb" xlink:to="loc_us-gaap_DerivativeTable_39ee1153-4361-4732-8248-d2d0e649a030" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_6d542894-6e59-48c7-bd37-09f09e13e170" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_39ee1153-4361-4732-8248-d2d0e649a030" xlink:to="loc_us-gaap_HedgingDesignationAxis_6d542894-6e59-48c7-bd37-09f09e13e170" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_6d542894-6e59-48c7-bd37-09f09e13e170_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_6d542894-6e59-48c7-bd37-09f09e13e170" xlink:to="loc_us-gaap_HedgingDesignationDomain_6d542894-6e59-48c7-bd37-09f09e13e170_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_3c647f6d-2dc9-4c4a-8d70-4e2c37d8dcd1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_6d542894-6e59-48c7-bd37-09f09e13e170" xlink:to="loc_us-gaap_HedgingDesignationDomain_3c647f6d-2dc9-4c4a-8d70-4e2c37d8dcd1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_c26ec880-8ec5-452c-bb8c-b493908b5062" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_3c647f6d-2dc9-4c4a-8d70-4e2c37d8dcd1" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_c26ec880-8ec5-452c-bb8c-b493908b5062" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_812c3c7b-4a29-4ea0-8235-8707389484a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_3c647f6d-2dc9-4c4a-8d70-4e2c37d8dcd1" xlink:to="loc_us-gaap_NondesignatedMember_812c3c7b-4a29-4ea0-8235-8707389484a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_0a14f60e-39ce-42d7-87c8-8c6ad99b2500" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_39ee1153-4361-4732-8248-d2d0e649a030" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_0a14f60e-39ce-42d7-87c8-8c6ad99b2500" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_0a14f60e-39ce-42d7-87c8-8c6ad99b2500_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_0a14f60e-39ce-42d7-87c8-8c6ad99b2500" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_0a14f60e-39ce-42d7-87c8-8c6ad99b2500_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_51de7727-2bb3-43d0-85d9-2a30bfdb37fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_0a14f60e-39ce-42d7-87c8-8c6ad99b2500" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_51de7727-2bb3-43d0-85d9-2a30bfdb37fa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDerivativeInstrumentsMember_bbee6adf-4ef0-4509-8507-14184b48159c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnDerivativeInstrumentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_51de7727-2bb3-43d0-85d9-2a30bfdb37fa" xlink:to="loc_us-gaap_GainLossOnDerivativeInstrumentsMember_bbee6adf-4ef0-4509-8507-14184b48159c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseMember_46031059-f52a-466e-9deb-e1df90a1bfbc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_51de7727-2bb3-43d0-85d9-2a30bfdb37fa" xlink:to="loc_us-gaap_InterestExpenseMember_46031059-f52a-466e-9deb-e1df90a1bfbc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_7fdd1b59-cd94-4634-886a-a8544d38a57d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_3e58c758-84ae-4111-9169-0c48283177bb" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_7fdd1b59-cd94-4634-886a-a8544d38a57d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_06f49fbb-6dab-407e-b5d9-6a7ca5061174" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_3e58c758-84ae-4111-9169-0c48283177bb" xlink:to="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_06f49fbb-6dab-407e-b5d9-6a7ca5061174" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/FairValueMeasurementsDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#FairValueMeasurementsDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/FairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_40f585b1-8ba5-4a1e-9fd2-1b8055a6f478" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_c9d06f8b-cb9b-48b9-ae8b-d986ee73fd50" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_40f585b1-8ba5-4a1e-9fd2-1b8055a6f478" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_c9d06f8b-cb9b-48b9-ae8b-d986ee73fd50" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_84e33840-15ad-4153-a94f-55b018e478b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_c9d06f8b-cb9b-48b9-ae8b-d986ee73fd50" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_84e33840-15ad-4153-a94f-55b018e478b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_84e33840-15ad-4153-a94f-55b018e478b1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_84e33840-15ad-4153-a94f-55b018e478b1" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_84e33840-15ad-4153-a94f-55b018e478b1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_9ff04c5c-12cc-482b-b0d3-1182ea82f8fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_84e33840-15ad-4153-a94f-55b018e478b1" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_9ff04c5c-12cc-482b-b0d3-1182ea82f8fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_21f4eaae-5f75-478a-a736-9a0f756b0118" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_9ff04c5c-12cc-482b-b0d3-1182ea82f8fc" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_21f4eaae-5f75-478a-a736-9a0f756b0118" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_78c236c5-fd83-4b97-9358-d3f79f36b2ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_21f4eaae-5f75-478a-a736-9a0f756b0118" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_78c236c5-fd83-4b97-9358-d3f79f36b2ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_f13b5d32-73f0-4049-933e-cfcbb092e3fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_21f4eaae-5f75-478a-a736-9a0f756b0118" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_f13b5d32-73f0-4049-933e-cfcbb092e3fc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_6194dc0f-eb93-4426-81e3-31242bce6ea0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_40f585b1-8ba5-4a1e-9fd2-1b8055a6f478" xlink:to="loc_us-gaap_LongTermDebt_6194dc0f-eb93-4426-81e3-31242bce6ea0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_c532c98c-a5d5-4d88-80e8-2ff2eca0bbaf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_40f585b1-8ba5-4a1e-9fd2-1b8055a6f478" xlink:to="loc_us-gaap_DebtInstrumentFairValue_c532c98c-a5d5-4d88-80e8-2ff2eca0bbaf" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/LeasesNarrativeDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#LeasesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/LeasesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_e542ea4e-30ac-4bd1-9004-4fcbb8731a19" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_e542ea4e-30ac-4bd1-9004-4fcbb8731a19" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_e72eba7d-40e3-4461-9db9-d83b4cc21e0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_e542ea4e-30ac-4bd1-9004-4fcbb8731a19" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_e72eba7d-40e3-4461-9db9-d83b4cc21e0d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e72eba7d-40e3-4461-9db9-d83b4cc21e0d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_e72eba7d-40e3-4461-9db9-d83b4cc21e0d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_e72eba7d-40e3-4461-9db9-d83b4cc21e0d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_5a93c96d-6934-4603-b8be-15507afc950f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_e72eba7d-40e3-4461-9db9-d83b4cc21e0d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_5a93c96d-6934-4603-b8be-15507afc950f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_d78af2e4-746a-483e-a534-411f2856fad0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_5a93c96d-6934-4603-b8be-15507afc950f" xlink:to="loc_us-gaap_BuildingMember_d78af2e4-746a-483e-a534-411f2856fad0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ParkingGarageMember_0a53c549-2a4c-48a2-ac2c-5d516922406d" xlink:href="drh-20251231.xsd#drh_ParkingGarageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_5a93c96d-6934-4603-b8be-15507afc950f" xlink:to="loc_drh_ParkingGarageMember_0a53c549-2a4c-48a2-ac2c-5d516922406d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_41df9064-389e-4b4f-bce1-259e3b0d85ca" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_e542ea4e-30ac-4bd1-9004-4fcbb8731a19" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_41df9064-389e-4b4f-bce1-259e3b0d85ca" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_41df9064-389e-4b4f-bce1-259e3b0d85ca_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_41df9064-389e-4b4f-bce1-259e3b0d85ca" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_41df9064-389e-4b4f-bce1-259e3b0d85ca_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_41df9064-389e-4b4f-bce1-259e3b0d85ca" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HiltonBethesdaHotelMember_5ba28c18-f2a8-409a-aba9-880c52d8c989" xlink:href="drh-20251231.xsd#drh_HiltonBethesdaHotelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:to="loc_drh_HiltonBethesdaHotelMember_5ba28c18-f2a8-409a-aba9-880c52d8c989" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CourtyardManhattanFifthAvenueMember_30bcc8c3-8361-45d1-807c-a8c042231668" xlink:href="drh-20251231.xsd#drh_CourtyardManhattanFifthAvenueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:to="loc_drh_CourtyardManhattanFifthAvenueMember_30bcc8c3-8361-45d1-807c-a8c042231668" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CourtyardManhattanFifthAvenueTwoMember_675936dc-da52-4b32-a8ee-ac4fcb7a5b85" xlink:href="drh-20251231.xsd#drh_CourtyardManhattanFifthAvenueTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:to="loc_drh_CourtyardManhattanFifthAvenueTwoMember_675936dc-da52-4b32-a8ee-ac4fcb7a5b85" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_MarriottSaltLakeCityDowntownMember_2335aa71-9904-4a19-b0b7-e7fa40d38312" xlink:href="drh-20251231.xsd#drh_MarriottSaltLakeCityDowntownMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:to="loc_drh_MarriottSaltLakeCityDowntownMember_2335aa71-9904-4a19-b0b7-e7fa40d38312" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_BostonWestinWaterfrontMember_706e1279-9771-4827-9042-21a2fc2f22f1" xlink:href="drh-20251231.xsd#drh_BostonWestinWaterfrontMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:to="loc_drh_BostonWestinWaterfrontMember_706e1279-9771-4827-9042-21a2fc2f22f1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelPalomarPhoenixMember_8e48e877-0369-4582-b91c-15c0193fd3ee" xlink:href="drh-20251231.xsd#drh_HotelPalomarPhoenixMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:to="loc_drh_HotelPalomarPhoenixMember_8e48e877-0369-4582-b91c-15c0193fd3ee" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CavalloPointMember_c7a5a748-3d14-4222-8191-6865b1da8e33" xlink:href="drh-20251231.xsd#drh_CavalloPointMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:to="loc_drh_CavalloPointMember_c7a5a748-3d14-4222-8191-6865b1da8e33" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelClioMember_10421160-f4ea-4d29-b1b3-e609ede22f4d" xlink:href="drh-20251231.xsd#drh_HotelClioMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:to="loc_drh_HotelClioMember_10421160-f4ea-4d29-b1b3-e609ede22f4d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_BourbonOrleansHotelMember_bff6bcdf-d0ff-48b1-8c6d-954ba98f4454" xlink:href="drh-20251231.xsd#drh_BourbonOrleansHotelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_974b554e-b9f9-4f1a-9920-29271c9dcda6" xlink:to="loc_drh_BourbonOrleansHotelMember_bff6bcdf-d0ff-48b1-8c6d-954ba98f4454" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_bb9d2a68-dc06-4493-9be8-e42d636f39db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_e542ea4e-30ac-4bd1-9004-4fcbb8731a19" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_bb9d2a68-dc06-4493-9be8-e42d636f39db" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_bb9d2a68-dc06-4493-9be8-e42d636f39db_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_bb9d2a68-dc06-4493-9be8-e42d636f39db" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_bb9d2a68-dc06-4493-9be8-e42d636f39db_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_1a50164e-e061-457a-af58-7ce36b1580d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_bb9d2a68-dc06-4493-9be8-e42d636f39db" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_1a50164e-e061-457a-af58-7ce36b1580d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LAubergedeSedonaMember_019c1e6d-10a9-7fbe-a278-2d9596c878c1" xlink:href="drh-20251231.xsd#drh_LAubergedeSedonaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_1a50164e-e061-457a-af58-7ce36b1580d8" xlink:to="loc_drh_LAubergedeSedonaMember_019c1e6d-10a9-7fbe-a278-2d9596c878c1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeasesRenewalOptionsAxis_15dcd6ea-23e9-4711-a058-9c5d10be78ac" xlink:href="drh-20251231.xsd#drh_GroundLeasesRenewalOptionsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_e542ea4e-30ac-4bd1-9004-4fcbb8731a19" xlink:to="loc_drh_GroundLeasesRenewalOptionsAxis_15dcd6ea-23e9-4711-a058-9c5d10be78ac" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeasesRenewalOptionsDomain_15dcd6ea-23e9-4711-a058-9c5d10be78ac_default" xlink:href="drh-20251231.xsd#drh_GroundLeasesRenewalOptionsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_drh_GroundLeasesRenewalOptionsAxis_15dcd6ea-23e9-4711-a058-9c5d10be78ac" xlink:to="loc_drh_GroundLeasesRenewalOptionsDomain_15dcd6ea-23e9-4711-a058-9c5d10be78ac_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeasesRenewalOptionsDomain_6dfec6ab-edae-411f-867f-d72ee034f8b5" xlink:href="drh-20251231.xsd#drh_GroundLeasesRenewalOptionsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_drh_GroundLeasesRenewalOptionsAxis_15dcd6ea-23e9-4711-a058-9c5d10be78ac" xlink:to="loc_drh_GroundLeasesRenewalOptionsDomain_6dfec6ab-edae-411f-867f-d72ee034f8b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeasesFirstSetofRenewalOptionsMember_e6a3d5ce-426c-4639-ae65-2ae3c0494c87" xlink:href="drh-20251231.xsd#drh_GroundLeasesFirstSetofRenewalOptionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeasesRenewalOptionsDomain_6dfec6ab-edae-411f-867f-d72ee034f8b5" xlink:to="loc_drh_GroundLeasesFirstSetofRenewalOptionsMember_e6a3d5ce-426c-4639-ae65-2ae3c0494c87" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LesseeOperatingLeaseNumberOfLeases_af293dd3-18c2-44ef-b84a-e7de90dc80ca" xlink:href="drh-20251231.xsd#drh_LesseeOperatingLeaseNumberOfLeases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_drh_LesseeOperatingLeaseNumberOfLeases_af293dd3-18c2-44ef-b84a-e7de90dc80ca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_86d852e9-9c89-468d-8233-42934ae0ea97" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_86d852e9-9c89-468d-8233-42934ae0ea97" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfPropertiesSubjectToGroundLeases_7e976594-dfa0-4211-80bb-a9efdada28f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfPropertiesSubjectToGroundLeases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_us-gaap_NumberOfPropertiesSubjectToGroundLeases_7e976594-dfa0-4211-80bb-a9efdada28f2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_NumberOfPropertiesSubjectToGroundLeasesNumberOfRenewalPeriods_a9d227c5-6617-4253-9dfd-f28a877a3748" xlink:href="drh-20251231.xsd#drh_NumberOfPropertiesSubjectToGroundLeasesNumberOfRenewalPeriods"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_drh_NumberOfPropertiesSubjectToGroundLeasesNumberOfRenewalPeriods_a9d227c5-6617-4253-9dfd-f28a877a3748" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeasesRenewalOptionYears_eef143fa-b0e5-41da-ae54-3868eb4ebdda" xlink:href="drh-20251231.xsd#drh_GroundLeasesRenewalOptionYears"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_drh_GroundLeasesRenewalOptionYears_eef143fa-b0e5-41da-ae54-3868eb4ebdda" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LesseeOperatingLeaseRenewalOptionMinimumPaymentsForCapitalImprovements_d99949bd-be06-404b-aa7e-77000cda011b" xlink:href="drh-20251231.xsd#drh_LesseeOperatingLeaseRenewalOptionMinimumPaymentsForCapitalImprovements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_drh_LesseeOperatingLeaseRenewalOptionMinimumPaymentsForCapitalImprovements_d99949bd-be06-404b-aa7e-77000cda011b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfRealEstateProperty_b429480c-3536-423c-813b-c395ae6d8650" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AreaOfRealEstateProperty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_us-gaap_AreaOfRealEstateProperty_b429480c-3536-423c-813b-c395ae6d8650" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeasesIncrementalRenewalOptionYears_374eb1cc-2595-472e-810d-d88818e71b8c" xlink:href="drh-20251231.xsd#drh_GroundLeasesIncrementalRenewalOptionYears"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_drh_GroundLeasesIncrementalRenewalOptionYears_374eb1cc-2595-472e-810d-d88818e71b8c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_NumberOfHotelRooms_1aa2f2b7-a96e-4b99-86a4-98d273d2f78b" xlink:href="drh-20251231.xsd#drh_NumberOfHotelRooms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_drh_NumberOfHotelRooms_1aa2f2b7-a96e-4b99-86a4-98d273d2f78b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_BusinessAcquisitionNumberOfRoomsAcquired_e0e0c2dd-b8e3-4ff5-a6f8-0bc7afbbdc80" xlink:href="drh-20251231.xsd#drh_BusinessAcquisitionNumberOfRoomsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_c4e67f98-3792-4a53-beea-f269db65e637" xlink:to="loc_drh_BusinessAcquisitionNumberOfRoomsAcquired_e0e0c2dd-b8e3-4ff5-a6f8-0bc7afbbdc80" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/LeasesGroundLeasesAnnualRentDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#LeasesGroundLeasesAnnualRentDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/LeasesGroundLeasesAnnualRentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:href="drh-20251231.xsd#drh_ScheduleOfGroundLeasedAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ScheduleOfGroundLeasedAssetsTable_72eb8844-1cef-4cce-ab0c-6bf231caf5dd" xlink:href="drh-20251231.xsd#drh_ScheduleOfGroundLeasedAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_ScheduleOfGroundLeasedAssetsTable_72eb8844-1cef-4cce-ab0c-6bf231caf5dd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_7a3e5eeb-87a4-4fba-b901-867ae5e09d7d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsTable_72eb8844-1cef-4cce-ab0c-6bf231caf5dd" xlink:to="loc_srt_StatementScenarioAxis_7a3e5eeb-87a4-4fba-b901-867ae5e09d7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_7a3e5eeb-87a4-4fba-b901-867ae5e09d7d_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_7a3e5eeb-87a4-4fba-b901-867ae5e09d7d" xlink:to="loc_srt_ScenarioUnspecifiedDomain_7a3e5eeb-87a4-4fba-b901-867ae5e09d7d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_9d34781e-697b-4c33-92d1-88037ddd2863" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_7a3e5eeb-87a4-4fba-b901-867ae5e09d7d" xlink:to="loc_srt_ScenarioUnspecifiedDomain_9d34781e-697b-4c33-92d1-88037ddd2863" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_67ee876b-3efd-4b68-8781-8d64347ff751" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_9d34781e-697b-4c33-92d1-88037ddd2863" xlink:to="loc_srt_ScenarioForecastMember_67ee876b-3efd-4b68-8781-8d64347ff751" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseTermPeriodAxis_f3b8f4c6-5bd6-4eef-b116-71f8b25bde5b" xlink:href="drh-20251231.xsd#drh_GroundLeaseTermPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsTable_72eb8844-1cef-4cce-ab0c-6bf231caf5dd" xlink:to="loc_drh_GroundLeaseTermPeriodAxis_f3b8f4c6-5bd6-4eef-b116-71f8b25bde5b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseTermPeriodDomain_f3b8f4c6-5bd6-4eef-b116-71f8b25bde5b_default" xlink:href="drh-20251231.xsd#drh_GroundLeaseTermPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_drh_GroundLeaseTermPeriodAxis_f3b8f4c6-5bd6-4eef-b116-71f8b25bde5b" xlink:to="loc_drh_GroundLeaseTermPeriodDomain_f3b8f4c6-5bd6-4eef-b116-71f8b25bde5b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:href="drh-20251231.xsd#drh_GroundLeaseTermPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_drh_GroundLeaseTermPeriodAxis_f3b8f4c6-5bd6-4eef-b116-71f8b25bde5b" xlink:to="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ThroughApril2087Member_ecac28ad-42c9-4785-89ea-80df1d3ba20f" xlink:href="drh-20251231.xsd#drh_ThroughApril2087Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_ThroughApril2087Member_ecac28ad-42c9-4785-89ea-80df1d3ba20f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2017throughSeptember2027Member_d53f6fad-d41f-44a4-bb7f-d26ace1d989e" xlink:href="drh-20251231.xsd#drh_October2017throughSeptember2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2017throughSeptember2027Member_d53f6fad-d41f-44a4-bb7f-d26ace1d989e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2027throughSeptember2037Member_55215770-b8ff-472b-b634-9d86ad64e483" xlink:href="drh-20251231.xsd#drh_October2027throughSeptember2037Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2027throughSeptember2037Member_55215770-b8ff-472b-b634-9d86ad64e483" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2037throughSeptember2047Member_9b848cc8-0e14-4a2d-acf9-969c0d754170" xlink:href="drh-20251231.xsd#drh_October2037throughSeptember2047Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2037throughSeptember2047Member_9b848cc8-0e14-4a2d-acf9-969c0d754170" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2047throughSeptember2057Member_2619e7c3-1a67-493f-80cc-7ea393301c22" xlink:href="drh-20251231.xsd#drh_October2047throughSeptember2057Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2047throughSeptember2057Member_2619e7c3-1a67-493f-80cc-7ea393301c22" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2057throughSeptember2067Member_22251996-d85e-4bde-97b5-a0c38e53179c" xlink:href="drh-20251231.xsd#drh_October2057throughSeptember2067Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2057throughSeptember2067Member_22251996-d85e-4bde-97b5-a0c38e53179c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2067throughSeptember2077Member_36fe3a68-23dd-404a-a34a-d6a6ec22a3d8" xlink:href="drh-20251231.xsd#drh_October2067throughSeptember2077Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2067throughSeptember2077Member_36fe3a68-23dd-404a-a34a-d6a6ec22a3d8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2077ThroughSeptember2087Member_4052515f-49c4-486a-b97b-4ea6fd5fb73f" xlink:href="drh-20251231.xsd#drh_October2077ThroughSeptember2087Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2077ThroughSeptember2087Member_4052515f-49c4-486a-b97b-4ea6fd5fb73f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2087ThroughSeptember2097Member_c1b69d04-4d80-4267-9acb-d5930ab5dff8" xlink:href="drh-20251231.xsd#drh_October2087ThroughSeptember2097Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2087ThroughSeptember2097Member_c1b69d04-4d80-4267-9acb-d5930ab5dff8" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2097ThroughSeptember2107Member_6627df4a-6d2f-4f3b-8e5f-754fa517b690" xlink:href="drh-20251231.xsd#drh_October2097ThroughSeptember2107Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2097ThroughSeptember2107Member_6627df4a-6d2f-4f3b-8e5f-754fa517b690" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2107ThroughSeptember2117Member_d4c1f119-aa75-42f6-a053-d6f2543e0bf4" xlink:href="drh-20251231.xsd#drh_October2107ThroughSeptember2117Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2107ThroughSeptember2117Member_d4c1f119-aa75-42f6-a053-d6f2543e0bf4" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_October2117ThroughSeptember2121Member_20867028-d486-4d23-97f3-69345fb802a3" xlink:href="drh-20251231.xsd#drh_October2117ThroughSeptember2121Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_October2117ThroughSeptember2121Member_20867028-d486-4d23-97f3-69345fb802a3" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ThroughDecember2106Member_3e0be4b9-2761-4d38-8e35-d54d663655ca" xlink:href="drh-20251231.xsd#drh_ThroughDecember2106Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_ThroughDecember2106Member_3e0be4b9-2761-4d38-8e35-d54d663655ca" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2018ThroughDecember2056Member_698bc09e-17f3-4a0f-a677-25b9b1e92440" xlink:href="drh-20251231.xsd#drh_January2018ThroughDecember2056Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2018ThroughDecember2056Member_698bc09e-17f3-4a0f-a677-25b9b1e92440" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2021throughDecember2025Member_1611900e-fa98-42c2-9b4b-c55a98ef1824" xlink:href="drh-20251231.xsd#drh_January2021throughDecember2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2021throughDecember2025Member_1611900e-fa98-42c2-9b4b-c55a98ef1824" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2026throughDecember2030Member_c1a8077e-8788-479a-b327-e59a116ef2ce" xlink:href="drh-20251231.xsd#drh_January2026throughDecember2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2026throughDecember2030Member_c1a8077e-8788-479a-b327-e59a116ef2ce" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2031throughDecember2035Member_08238a46-b9d9-487a-86ad-88af13abd267" xlink:href="drh-20251231.xsd#drh_January2031throughDecember2035Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2031throughDecember2035Member_08238a46-b9d9-487a-86ad-88af13abd267" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2036throughMay2099Member_409da464-01c2-4244-b810-70763f27beaf" xlink:href="drh-20251231.xsd#drh_January2036throughMay2099Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2036throughMay2099Member_409da464-01c2-4244-b810-70763f27beaf" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_June2016ThroughMay2026Member_5ddc3841-0839-4ee1-9099-36f1cdd09f90" xlink:href="drh-20251231.xsd#drh_June2016ThroughMay2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_June2016ThroughMay2026Member_5ddc3841-0839-4ee1-9099-36f1cdd09f90" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_June2026ThroughMay2036Member_a277b385-cd0c-492c-8e7b-0782a4be0946" xlink:href="drh-20251231.xsd#drh_June2026ThroughMay2036Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_June2026ThroughMay2036Member_a277b385-cd0c-492c-8e7b-0782a4be0946" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_June2036ThroughMay2046Member_85f3f4ab-b8a5-4bbb-a1be-b2e967de52b5" xlink:href="drh-20251231.xsd#drh_June2036ThroughMay2046Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_June2036ThroughMay2046Member_85f3f4ab-b8a5-4bbb-a1be-b2e967de52b5" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_June2046ThroughMay2056Member_0ba4d3ed-cf8e-479f-9a2e-70c5c83596db" xlink:href="drh-20251231.xsd#drh_June2046ThroughMay2056Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_June2046ThroughMay2056Member_0ba4d3ed-cf8e-479f-9a2e-70c5c83596db" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_June2056ThroughMay2066Member_fc7c27b7-8b89-4844-8076-3607b3145ee9" xlink:href="drh-20251231.xsd#drh_June2056ThroughMay2066Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_June2056ThroughMay2066Member_fc7c27b7-8b89-4844-8076-3607b3145ee9" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2066throughMay2099Member_cf1bae9b-1dca-434b-9af6-9c207e777914" xlink:href="drh-20251231.xsd#drh_January2066throughMay2099Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2066throughMay2099Member_cf1bae9b-1dca-434b-9af6-9c207e777914" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2015throughDecember2020Member_7576f5d3-456c-4264-a190-1fc9757673dc" xlink:href="drh-20251231.xsd#drh_January2015throughDecember2020Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2015throughDecember2020Member_7576f5d3-456c-4264-a190-1fc9757673dc" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_July2018ThroughDecember2070Member_058204d0-a7e5-4b16-8f8c-21a33a5ebf72" xlink:href="drh-20251231.xsd#drh_July2018ThroughDecember2070Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_July2018ThroughDecember2070Member_058204d0-a7e5-4b16-8f8c-21a33a5ebf72" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_April2022ThroughMarch2085Member_46485317-9360-47a0-b000-9d3e89bd4398" xlink:href="drh-20251231.xsd#drh_April2022ThroughMarch2085Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_April2022ThroughMarch2085Member_46485317-9360-47a0-b000-9d3e89bd4398" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2022ThroughJune2033Member_6c6f96d4-06ed-4691-b653-5d27d18bb0aa" xlink:href="drh-20251231.xsd#drh_January2022ThroughJune2033Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2022ThroughJune2033Member_6c6f96d4-06ed-4691-b653-5d27d18bb0aa" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_July2033ThroughJune2043Member_fe6ed943-a14d-4493-b395-667b080ae091" xlink:href="drh-20251231.xsd#drh_July2033ThroughJune2043Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_July2033ThroughJune2043Member_fe6ed943-a14d-4493-b395-667b080ae091" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_July2043ThroughJune2053Member_d14ff393-2732-4bd6-bf77-7e7f71097fe2" xlink:href="drh-20251231.xsd#drh_July2043ThroughJune2053Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_July2043ThroughJune2053Member_d14ff393-2732-4bd6-bf77-7e7f71097fe2" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_July2053ThroughJune2063Member_4d6da14c-2e75-4f89-8c36-2d6de57f23d3" xlink:href="drh-20251231.xsd#drh_July2053ThroughJune2063Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_July2053ThroughJune2063Member_4d6da14c-2e75-4f89-8c36-2d6de57f23d3" xlink:type="arc" order="30"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_July2063ThroughJune2085Member_83690cb0-9e8f-4400-a14b-b564cbeb65ac" xlink:href="drh-20251231.xsd#drh_July2063ThroughJune2085Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_July2063ThroughJune2085Member_83690cb0-9e8f-4400-a14b-b564cbeb65ac" xlink:type="arc" order="31"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2019ThroughDecember2066Member_d0c7a1c7-1317-4c29-b402-b0239e74be45" xlink:href="drh-20251231.xsd#drh_January2019ThroughDecember2066Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2019ThroughDecember2066Member_d0c7a1c7-1317-4c29-b402-b0239e74be45" xlink:type="arc" order="32"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2024ThroughDecember2028Member_a7e2e5a5-b9c2-4e29-9444-e11fbd9488b9" xlink:href="drh-20251231.xsd#drh_January2024ThroughDecember2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2024ThroughDecember2028Member_a7e2e5a5-b9c2-4e29-9444-e11fbd9488b9" xlink:type="arc" order="33"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2029ThroughDecember2033Member_bb2545a5-b236-418c-b8fb-c32aed379d69" xlink:href="drh-20251231.xsd#drh_January2029ThroughDecember2033Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2029ThroughDecember2033Member_bb2545a5-b236-418c-b8fb-c32aed379d69" xlink:type="arc" order="34"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_January2034ThroughDecember2066Member_962e20c0-ff51-4c23-a067-1d8858579779" xlink:href="drh-20251231.xsd#drh_January2034ThroughDecember2066Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_January2034ThroughDecember2066Member_962e20c0-ff51-4c23-a067-1d8858579779" xlink:type="arc" order="35"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ThroughDecember2066Member_af690d57-0e47-410d-b4e8-c16f24fda5b8" xlink:href="drh-20251231.xsd#drh_ThroughDecember2066Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_ThroughDecember2066Member_af690d57-0e47-410d-b4e8-c16f24fda5b8" xlink:type="arc" order="36"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ThroughJuly2069Member_cf953f9f-76a5-48ca-a89f-1c0e0bf93982" xlink:href="drh-20251231.xsd#drh_ThroughJuly2069Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_GroundLeaseTermPeriodDomain_dff834c9-b4ef-4053-9ba6-e61970b1f177" xlink:to="loc_drh_ThroughJuly2069Member_cf953f9f-76a5-48ca-a89f-1c0e0bf93982" xlink:type="arc" order="37"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_605e235a-191d-4bba-a6f7-cac64666eddb" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsTable_72eb8844-1cef-4cce-ab0c-6bf231caf5dd" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_605e235a-191d-4bba-a6f7-cac64666eddb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_605e235a-191d-4bba-a6f7-cac64666eddb_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_605e235a-191d-4bba-a6f7-cac64666eddb" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_605e235a-191d-4bba-a6f7-cac64666eddb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_605e235a-191d-4bba-a6f7-cac64666eddb" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_EmbassySuitesByHiltonBethesdaMember_5c1b6601-7d68-4c26-9332-c84b1b866db3" xlink:href="drh-20251231.xsd#drh_EmbassySuitesByHiltonBethesdaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:to="loc_drh_EmbassySuitesByHiltonBethesdaMember_5c1b6601-7d68-4c26-9332-c84b1b866db3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CourtyardManhattanFifthAvenueMember_77725993-de52-4d36-9d91-9a190f0d3b45" xlink:href="drh-20251231.xsd#drh_CourtyardManhattanFifthAvenueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:to="loc_drh_CourtyardManhattanFifthAvenueMember_77725993-de52-4d36-9d91-9a190f0d3b45" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_SaltLakeCityMarriottDowntownMember_ea1a7a7f-cf2f-4768-868a-b917f64ef117" xlink:href="drh-20251231.xsd#drh_SaltLakeCityMarriottDowntownMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:to="loc_drh_SaltLakeCityMarriottDowntownMember_ea1a7a7f-cf2f-4768-868a-b917f64ef117" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_BostonWestinWaterfrontMember_6117b1da-26e6-4a6a-9dc8-e5f00eae929d" xlink:href="drh-20251231.xsd#drh_BostonWestinWaterfrontMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:to="loc_drh_BostonWestinWaterfrontMember_6117b1da-26e6-4a6a-9dc8-e5f00eae929d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelClioMember_e13f4ed2-4372-4131-9e65-27c594be217f" xlink:href="drh-20251231.xsd#drh_HotelClioMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:to="loc_drh_HotelClioMember_e13f4ed2-4372-4131-9e65-27c594be217f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LAubergedeSedonaMember_019c1e71-86ce-783b-8b6c-8c43a85f260a" xlink:href="drh-20251231.xsd#drh_LAubergedeSedonaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:to="loc_drh_LAubergedeSedonaMember_019c1e71-86ce-783b-8b6c-8c43a85f260a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelPalomarPhoenixMember_ac3a2e90-63f5-4861-8d3f-1da55ada92d5" xlink:href="drh-20251231.xsd#drh_HotelPalomarPhoenixMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:to="loc_drh_HotelPalomarPhoenixMember_ac3a2e90-63f5-4861-8d3f-1da55ada92d5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CavalloPointMember_06eec7a8-d50b-4d6b-aa53-b9b1e18cef36" xlink:href="drh-20251231.xsd#drh_CavalloPointMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:to="loc_drh_CavalloPointMember_06eec7a8-d50b-4d6b-aa53-b9b1e18cef36" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_BourbonOrleansHotelParkingSubleaseMember_7ea7de83-b6fd-44d2-975d-76ad8958ba67" xlink:href="drh-20251231.xsd#drh_BourbonOrleansHotelParkingSubleaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_be74b4ec-b461-41f9-807e-a0ac8476fd4c" xlink:to="loc_drh_BourbonOrleansHotelParkingSubleaseMember_7ea7de83-b6fd-44d2-975d-76ad8958ba67" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_d0489e74-8099-47cc-bb39-385086edde8e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsTable_72eb8844-1cef-4cce-ab0c-6bf231caf5dd" xlink:to="loc_srt_RangeAxis_d0489e74-8099-47cc-bb39-385086edde8e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d0489e74-8099-47cc-bb39-385086edde8e_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_d0489e74-8099-47cc-bb39-385086edde8e" xlink:to="loc_srt_RangeMember_d0489e74-8099-47cc-bb39-385086edde8e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_e93d0440-dd70-46ed-85ff-6914a6de447e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_d0489e74-8099-47cc-bb39-385086edde8e" xlink:to="loc_srt_RangeMember_e93d0440-dd70-46ed-85ff-6914a6de447e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_528f565c-fe23-4966-a169-9f58fc80d62d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_e93d0440-dd70-46ed-85ff-6914a6de447e" xlink:to="loc_srt_MaximumMember_528f565c-fe23-4966-a169-9f58fc80d62d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseAnnualRentExpense_ebedcf82-556e-48a8-9ca3-b375b5dca625" xlink:href="drh-20251231.xsd#drh_GroundLeaseAnnualRentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeaseAnnualRentExpense_ebedcf82-556e-48a8-9ca3-b375b5dca625" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseAnnualRentExpensePercentageofGrossRoomSales_de731905-01bd-4723-bb3f-e863a84bb63b" xlink:href="drh-20251231.xsd#drh_GroundLeaseAnnualRentExpensePercentageofGrossRoomSales"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeaseAnnualRentExpensePercentageofGrossRoomSales_de731905-01bd-4723-bb3f-e863a84bb63b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseAnnualRentExpenseAnnualIncreasePercentage_7fbee4df-a6fc-4056-8266-f2f504219472" xlink:href="drh-20251231.xsd#drh_GroundLeaseAnnualRentExpenseAnnualIncreasePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeaseAnnualRentExpenseAnnualIncreasePercentage_7fbee4df-a6fc-4056-8266-f2f504219472" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseAnnualRentExpensePercentageofGrossSales_0cf7b6c7-d6c2-4d1c-8ad2-1940d5246b58" xlink:href="drh-20251231.xsd#drh_GroundLeaseAnnualRentExpensePercentageofGrossSales"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeaseAnnualRentExpensePercentageofGrossSales_0cf7b6c7-d6c2-4d1c-8ad2-1940d5246b58" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseTerm_6ebde05b-bcc4-46b5-9f96-209a8abd9ea2" xlink:href="drh-20251231.xsd#drh_GroundLeaseTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeaseTerm_6ebde05b-bcc4-46b5-9f96-209a8abd9ea2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeasesIncrementalRentTermIncreasesPeriod_ed7c0b55-cf3c-4c6d-8a5f-e79065a3dc12" xlink:href="drh-20251231.xsd#drh_GroundLeasesIncrementalRentTermIncreasesPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeasesIncrementalRentTermIncreasesPeriod_ed7c0b55-cf3c-4c6d-8a5f-e79065a3dc12" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseAverageAdjustedGrossRevenuesPeriod_aef8f0d7-ddf4-4c33-9834-7b8ee940a30c" xlink:href="drh-20251231.xsd#drh_GroundLeaseAverageAdjustedGrossRevenuesPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeaseAverageAdjustedGrossRevenuesPeriod_aef8f0d7-ddf4-4c33-9834-7b8ee940a30c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseAdjustedGrossRevenuesMultiplier_a23ccb7d-330f-459b-8725-d86f9ca84e58" xlink:href="drh-20251231.xsd#drh_GroundLeaseAdjustedGrossRevenuesMultiplier"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeaseAdjustedGrossRevenuesMultiplier_a23ccb7d-330f-459b-8725-d86f9ca84e58" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeasePercentageRentCalculationThreshold_b0961399-8ed8-4ce9-8cda-7919d5529549" xlink:href="drh-20251231.xsd#drh_GroundLeasePercentageRentCalculationThreshold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeasePercentageRentCalculationThreshold_b0961399-8ed8-4ce9-8cda-7919d5529549" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeaseParticipationRentCalculationThreshold_da5672f5-5d1d-4a19-837a-34a782caf789" xlink:href="drh-20251231.xsd#drh_GroundLeaseParticipationRentCalculationThreshold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeaseParticipationRentCalculationThreshold_da5672f5-5d1d-4a19-837a-34a782caf789" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_GroundLeasesIncrementalRentalTermIncreasesAmount_747d561f-f945-4e93-bc4d-f9b48263ec1c" xlink:href="drh-20251231.xsd#drh_GroundLeasesIncrementalRentalTermIncreasesAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_ScheduleOfGroundLeasedAssetsLineItems_a2276a1a-3216-4d45-8af2-9653d3933482" xlink:to="loc_drh_GroundLeasesIncrementalRentalTermIncreasesAmount_747d561f-f945-4e93-bc4d-f9b48263ec1c" xlink:type="arc" order="10"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/EquityNarrativeDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#EquityNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/EquityNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_019c1e7e-3be2-778b-9d7d-b705fb634ef8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_019c1e7e-3be2-778b-9d7d-b705fb634ef8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019c1e7e-3be2-75cb-9df9-4546a39f9bd0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019c1e7e-3be2-778b-9d7d-b705fb634ef8" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019c1e7e-3be2-75cb-9df9-4546a39f9bd0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019c1e7e-3be2-75cb-9df9-4546a39f9bd0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019c1e7e-3be2-75cb-9df9-4546a39f9bd0" xlink:to="loc_us-gaap_ClassOfStockDomain_019c1e7e-3be2-75cb-9df9-4546a39f9bd0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019c1e7e-3be2-709c-bc6c-73a332b272ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019c1e7e-3be2-75cb-9df9-4546a39f9bd0" xlink:to="loc_us-gaap_ClassOfStockDomain_019c1e7e-3be2-709c-bc6c-73a332b272ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019c1e7e-3be2-7237-9163-97937c3f2ed9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019c1e7e-3be2-709c-bc6c-73a332b272ec" xlink:to="loc_us-gaap_CommonStockMember_019c1e7e-3be2-7237-9163-97937c3f2ed9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_019c1e7e-3be2-710b-8678-afa23f24bf99" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019c1e7e-3be2-709c-bc6c-73a332b272ec" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_019c1e7e-3be2-710b-8678-afa23f24bf99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019c1e7e-3be2-7343-b0ef-5a60097aa647" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019c1e7e-3be2-778b-9d7d-b705fb634ef8" xlink:to="loc_dei_LegalEntityAxis_019c1e7e-3be2-7343-b0ef-5a60097aa647" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019c1e7e-3be2-7343-b0ef-5a60097aa647_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019c1e7e-3be2-7343-b0ef-5a60097aa647" xlink:to="loc_dei_EntityDomain_019c1e7e-3be2-7343-b0ef-5a60097aa647_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019c1e7e-3be2-7163-83f2-42f284399246" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019c1e7e-3be2-7343-b0ef-5a60097aa647" xlink:to="loc_dei_EntityDomain_019c1e7e-3be2-7163-83f2-42f284399246" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_UnaffiliatedThirdPartiesMember_019c1e7e-3be2-7ced-a6b4-dfcba30787a8" xlink:href="drh-20251231.xsd#drh_UnaffiliatedThirdPartiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019c1e7e-3be2-7163-83f2-42f284399246" xlink:to="loc_drh_UnaffiliatedThirdPartiesMember_019c1e7e-3be2-7ced-a6b4-dfcba30787a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019c1e7e-3be2-7b62-9365-3c1b5592aa5c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019c1e7e-3be2-778b-9d7d-b705fb634ef8" xlink:to="loc_us-gaap_AwardTypeAxis_019c1e7e-3be2-7b62-9365-3c1b5592aa5c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e7e-3be2-7b62-9365-3c1b5592aa5c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019c1e7e-3be2-7b62-9365-3c1b5592aa5c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e7e-3be2-7b62-9365-3c1b5592aa5c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e7e-3be2-7e6a-aa91-b2616d205f4e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019c1e7e-3be2-7b62-9365-3c1b5592aa5c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e7e-3be2-7e6a-aa91-b2616d205f4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LongTermIncentivePlanUnitMember_019c1e7e-3be2-7131-83b6-9977a5d3fdfe" xlink:href="drh-20251231.xsd#drh_LongTermIncentivePlanUnitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e7e-3be2-7e6a-aa91-b2616d205f4e" xlink:to="loc_drh_LongTermIncentivePlanUnitMember_019c1e7e-3be2-7131-83b6-9977a5d3fdfe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019c1e7e-3be2-7047-9f10-48f51882572c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019c1e7e-3be2-778b-9d7d-b705fb634ef8" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019c1e7e-3be2-7047-9f10-48f51882572c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019c1e7e-3be2-7047-9f10-48f51882572c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019c1e7e-3be2-7047-9f10-48f51882572c" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019c1e7e-3be2-7047-9f10-48f51882572c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019c1e7e-3be2-7e63-acab-3739a4e1df9c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019c1e7e-3be2-7047-9f10-48f51882572c" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019c1e7e-3be2-7e63-acab-3739a4e1df9c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019c1e7e-3be2-7521-848e-f27aa9642a3b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019c1e7e-3be2-7e63-acab-3739a4e1df9c" xlink:to="loc_us-gaap_SubsequentEventMember_019c1e7e-3be2-7521-848e-f27aa9642a3b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_019c1e7e-3be2-7865-9a9e-d1f09d43df70" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_019c1e7e-3be2-7865-9a9e-d1f09d43df70" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019c1e7e-3be2-7fa7-9a80-2fecd40ed7c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019c1e7e-3be2-7fa7-9a80-2fecd40ed7c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CommonStockVotingRightsVotes_019c1e7e-3be2-762c-9984-7ec2e57abbad" xlink:href="drh-20251231.xsd#drh_CommonStockVotingRightsVotes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_drh_CommonStockVotingRightsVotes_019c1e7e-3be2-762c-9984-7ec2e57abbad" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_SaleOfCommonStockAggregateOfferingPrice_019c1e7e-3be2-7e7e-b485-815ff32c4e7f" xlink:href="drh-20251231.xsd#drh_SaleOfCommonStockAggregateOfferingPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_drh_SaleOfCommonStockAggregateOfferingPrice_019c1e7e-3be2-7e7e-b485-815ff32c4e7f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019c1e7e-3be2-7804-9853-390fbae0f217" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019c1e7e-3be2-7804-9853-390fbae0f217" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019c1e7e-3be2-7674-943d-8d53c9407e10" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019c1e7e-3be2-7674-943d-8d53c9407e10" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_019c1e7e-3be2-7f86-96ff-5ca6b847a726" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_019c1e7e-3be2-7f86-96ff-5ca6b847a726" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019c1e7e-3be2-7cb3-9ca7-8e098837db0a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019c1e7e-3be2-7cb3-9ca7-8e098837db0a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019c1e7e-3be2-7304-b71c-c8c0eee22660" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019c1e7e-3be2-7304-b71c-c8c0eee22660" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019c1e7e-3be2-7f9c-a0f0-6a747723b08f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019c1e7e-3be2-7f9c-a0f0-6a747723b08f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_019c1e7e-3be2-7091-be15-1d1af594eb2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_019c1e7e-3be2-7091-be15-1d1af594eb2c" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019c1e7e-3be2-7ab1-9152-e6633d152b0e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019c1e7e-3be2-7ab1-9152-e6633d152b0e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendRatePercentage_019c1e7e-3be2-790b-ba1a-bc9bc8c710f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockDividendRatePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_PreferredStockDividendRatePercentage_019c1e7e-3be2-790b-ba1a-bc9bc8c710f5" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockLiquidationPreference_019c1e7e-3be2-7ace-b790-86059d7131a0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockLiquidationPreference"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_PreferredStockLiquidationPreference_019c1e7e-3be2-7ace-b790-86059d7131a0" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRedeemedOrCalledDuringPeriodShares_019c1e7f-8a34-77ed-8b4d-583ad3258d90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_StockRedeemedOrCalledDuringPeriodShares_019c1e7f-8a34-77ed-8b4d-583ad3258d90" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRedeemedOrCalledDuringPeriodValue_019c1e7f-8a34-7ab9-9851-6f88ecf6fbcc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_StockRedeemedOrCalledDuringPeriodValue_019c1e7f-8a34-7ab9-9851-6f88ecf6fbcc" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockRedemptionPricePerShare_019c1e7e-3be2-7532-85d5-a85a92b8aa6a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockRedemptionPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_PreferredStockRedemptionPricePerShare_019c1e7e-3be2-7532-85d5-a85a92b8aa6a" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitIssued_019c1e7e-3be2-7e20-a1a2-2bc4d8bea0b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonUnitIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_CommonUnitIssued_019c1e7e-3be2-7e20-a1a2-2bc4d8bea0b2" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CommonUnitIssuanceValuePerShare_019c1e7e-3be2-707e-b89f-5ddae0fc7e14" xlink:href="drh-20251231.xsd#drh_CommonUnitIssuanceValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_drh_CommonUnitIssuanceValuePerShare_019c1e7e-3be2-707e-b89f-5ddae0fc7e14" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_OperatingPartnershipUnitsOptionToRedeemForCommonStockRatio_019c1e7e-3be2-7478-b2ee-07882a9a2cec" xlink:href="drh-20251231.xsd#drh_OperatingPartnershipUnitsOptionToRedeemForCommonStockRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_drh_OperatingPartnershipUnitsOptionToRedeemForCommonStockRatio_019c1e7e-3be2-7478-b2ee-07882a9a2cec" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitOutstanding_019c1e7e-3be2-7564-8734-72de94c5cb54" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_CommonUnitOutstanding_019c1e7e-3be2-7564-8734-72de94c5cb54" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CommonUnitConverted_019c1e7e-3be2-790d-9b3d-c8cf9c063c2b" xlink:href="drh-20251231.xsd#drh_CommonUnitConverted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_drh_CommonUnitConverted_019c1e7e-3be2-790d-9b3d-c8cf9c063c2b" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnitsOfPartnershipInterestAmount_019c1e7e-3be2-78be-895e-54b0a809aaca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnitsOfPartnershipInterestAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_UnitsOfPartnershipInterestAmount_019c1e7e-3be2-78be-895e-54b0a809aaca" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019c1e7e-3be2-75be-a676-7bb3a5fc60bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019c1e7e-3be2-7bd2-9cda-35c07b496531" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019c1e7e-3be2-75be-a676-7bb3a5fc60bc" xlink:type="arc" order="23"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/EquityScheduleofDividendsPayableDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#EquityScheduleofDividendsPayableDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/EquityScheduleofDividendsPayableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_5d01ea99-e200-455a-bf1e-68fea1095e07" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_aa5b1ed5-8b9d-4bd4-9ff9-f2c6221625eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_5d01ea99-e200-455a-bf1e-68fea1095e07" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_aa5b1ed5-8b9d-4bd4-9ff9-f2c6221625eb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_cc0c0c58-6d9c-43ae-b885-c746e8fc4f16" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_aa5b1ed5-8b9d-4bd4-9ff9-f2c6221625eb" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_cc0c0c58-6d9c-43ae-b885-c746e8fc4f16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_cc0c0c58-6d9c-43ae-b885-c746e8fc4f16_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_cc0c0c58-6d9c-43ae-b885-c746e8fc4f16" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_cc0c0c58-6d9c-43ae-b885-c746e8fc4f16_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_a574da0c-b105-4bd5-b772-28da876a6310" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_cc0c0c58-6d9c-43ae-b885-c746e8fc4f16" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_a574da0c-b105-4bd5-b772-28da876a6310" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_b6f6a4ad-42c2-4879-b94b-1310a9a7fae2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_a574da0c-b105-4bd5-b772-28da876a6310" xlink:to="loc_us-gaap_SubsequentEventMember_b6f6a4ad-42c2-4879-b94b-1310a9a7fae2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsAxis_3a0eb726-f126-4000-9659-19ebfffcc6d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_aa5b1ed5-8b9d-4bd4-9ff9-f2c6221625eb" xlink:to="loc_us-gaap_DividendsAxis_3a0eb726-f126-4000-9659-19ebfffcc6d2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsDomain_3a0eb726-f126-4000-9659-19ebfffcc6d2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DividendsAxis_3a0eb726-f126-4000-9659-19ebfffcc6d2" xlink:to="loc_us-gaap_DividendsDomain_3a0eb726-f126-4000-9659-19ebfffcc6d2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DividendsAxis_3a0eb726-f126-4000-9659-19ebfffcc6d2" xlink:to="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_O2024Q1DividendsMember_e25b7435-a981-4523-80e4-eecc0b0cd3d9" xlink:href="drh-20251231.xsd#drh_O2024Q1DividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:to="loc_drh_O2024Q1DividendsMember_e25b7435-a981-4523-80e4-eecc0b0cd3d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_O2024Q2DividendsMember_26dc4977-0457-421a-823b-e6cf8733d0fb" xlink:href="drh-20251231.xsd#drh_O2024Q2DividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:to="loc_drh_O2024Q2DividendsMember_26dc4977-0457-421a-823b-e6cf8733d0fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_O2024Q3DividendsMember_29eae30e-12d6-4c61-b53a-2b43704c73b0" xlink:href="drh-20251231.xsd#drh_O2024Q3DividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:to="loc_drh_O2024Q3DividendsMember_29eae30e-12d6-4c61-b53a-2b43704c73b0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_O2024Q4DividendsMember_d6fd91af-c608-409e-ac64-53a87855e52e" xlink:href="drh-20251231.xsd#drh_O2024Q4DividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:to="loc_drh_O2024Q4DividendsMember_d6fd91af-c608-409e-ac64-53a87855e52e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_O2025Q1DividendsMember_1886a7d4-f1b3-4f78-8ba0-6ac61c9920f1" xlink:href="drh-20251231.xsd#drh_O2025Q1DividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:to="loc_drh_O2025Q1DividendsMember_1886a7d4-f1b3-4f78-8ba0-6ac61c9920f1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_O2025Q2DividendsMember_019c1e88-6daf-7c3b-8a65-166dfad1d2e1" xlink:href="drh-20251231.xsd#drh_O2025Q2DividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:to="loc_drh_O2025Q2DividendsMember_019c1e88-6daf-7c3b-8a65-166dfad1d2e1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_O2025Q3DividendsMember_019c1e88-ab5e-7236-811a-2e692a34e6d4" xlink:href="drh-20251231.xsd#drh_O2025Q3DividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:to="loc_drh_O2025Q3DividendsMember_019c1e88-ab5e-7236-811a-2e692a34e6d4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_O2025Q4DividendsMember_019c1e8a-04ce-7e2e-9678-6d6d38d0ae78" xlink:href="drh-20251231.xsd#drh_O2025Q4DividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:to="loc_drh_O2025Q4DividendsMember_019c1e8a-04ce-7e2e-9678-6d6d38d0ae78" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_O2026Q1DividendsMember_019c1e8a-aeda-7311-9d56-592cda9a9e44" xlink:href="drh-20251231.xsd#drh_O2026Q1DividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsDomain_0736d46d-ff58-4cb7-8011-16e7408d1dc6" xlink:to="loc_drh_O2026Q1DividendsMember_019c1e8a-aeda-7311-9d56-592cda9a9e44" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_1fee580c-83f1-4c22-a331-1101a3286a0f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockDividendsPerShareCashPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_5d01ea99-e200-455a-bf1e-68fea1095e07" xlink:to="loc_us-gaap_CommonStockDividendsPerShareCashPaid_1fee580c-83f1-4c22-a331-1101a3286a0f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsPerShareCashPaid_b9a3845e-f41b-46ca-aa39-5e8722997f19" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockDividendsPerShareCashPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_5d01ea99-e200-455a-bf1e-68fea1095e07" xlink:to="loc_us-gaap_PreferredStockDividendsPerShareCashPaid_b9a3845e-f41b-46ca-aa39-5e8722997f19" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/EquityIncentivePlanNarrativeDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#EquityIncentivePlanNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/EquityIncentivePlanNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c1e9d-ed03-754a-b13f-ea7c39103294" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c1e9d-ed03-754a-b13f-ea7c39103294" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019c1e9e-3eed-7ed5-b31d-1c49b661410b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c1e9d-ed03-754a-b13f-ea7c39103294" xlink:to="loc_us-gaap_PlanNameAxis_019c1e9e-3eed-7ed5-b31d-1c49b661410b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019c1e9e-3eed-7ed5-b31d-1c49b661410b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019c1e9e-3eed-7ed5-b31d-1c49b661410b" xlink:to="loc_us-gaap_PlanNameDomain_019c1e9e-3eed-7ed5-b31d-1c49b661410b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019c1e9e-3eed-76de-9dfa-a17cf7fa8999" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019c1e9e-3eed-7ed5-b31d-1c49b661410b" xlink:to="loc_us-gaap_PlanNameDomain_019c1e9e-3eed-76de-9dfa-a17cf7fa8999" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_A2024EquityIncentivePlanMember_019c1e9e-3eed-70e1-bafd-7ce2419f20f9" xlink:href="drh-20251231.xsd#drh_A2024EquityIncentivePlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019c1e9e-3eed-76de-9dfa-a17cf7fa8999" xlink:to="loc_drh_A2024EquityIncentivePlanMember_019c1e9e-3eed-70e1-bafd-7ce2419f20f9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019c1e9e-69c1-7a31-82ba-323bd909e9a4" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c1e9d-ed03-754a-b13f-ea7c39103294" xlink:to="loc_srt_RangeAxis_019c1e9e-69c1-7a31-82ba-323bd909e9a4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019c1e9e-69c1-7a31-82ba-323bd909e9a4_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019c1e9e-69c1-7a31-82ba-323bd909e9a4" xlink:to="loc_srt_RangeMember_019c1e9e-69c1-7a31-82ba-323bd909e9a4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019c1e9e-69c1-7bb8-bbad-e5065e3e473c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019c1e9e-69c1-7a31-82ba-323bd909e9a4" xlink:to="loc_srt_RangeMember_019c1e9e-69c1-7bb8-bbad-e5065e3e473c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019c1e9e-69c1-70b0-b830-0a67a1169840" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019c1e9e-69c1-7bb8-bbad-e5065e3e473c" xlink:to="loc_srt_MinimumMember_019c1e9e-69c1-70b0-b830-0a67a1169840" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019c1e9e-69c1-7c55-9fe9-a8f14d5befa5" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019c1e9e-69c1-7bb8-bbad-e5065e3e473c" xlink:to="loc_srt_MaximumMember_019c1e9e-69c1-7c55-9fe9-a8f14d5befa5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019c1e9e-69c1-7f0b-8ac5-ca959c081d55" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c1e9d-ed03-754a-b13f-ea7c39103294" xlink:to="loc_us-gaap_AwardTypeAxis_019c1e9e-69c1-7f0b-8ac5-ca959c081d55" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e9e-69c1-7f0b-8ac5-ca959c081d55_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019c1e9e-69c1-7f0b-8ac5-ca959c081d55" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e9e-69c1-7f0b-8ac5-ca959c081d55_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e9e-69c1-7899-866f-88f98aaa78a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019c1e9e-69c1-7f0b-8ac5-ca959c081d55" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e9e-69c1-7899-866f-88f98aaa78a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_019c1e9e-69c1-7df1-a5db-684eb2ef21f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e9e-69c1-7899-866f-88f98aaa78a7" xlink:to="loc_us-gaap_RestrictedStockMember_019c1e9e-69c1-7df1-a5db-684eb2ef21f3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_019c1e9e-a1b5-7f18-84c8-9fa152ac7768" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e9e-69c1-7899-866f-88f98aaa78a7" xlink:to="loc_us-gaap_PerformanceSharesMember_019c1e9e-a1b5-7f18-84c8-9fa152ac7768" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LongTermIncentivePlanUnitMember_019c1ea0-8ac4-7095-9983-01c4e3caad29" xlink:href="drh-20251231.xsd#drh_LongTermIncentivePlanUnitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019c1e9e-69c1-7899-866f-88f98aaa78a7" xlink:to="loc_drh_LongTermIncentivePlanUnitMember_019c1ea0-8ac4-7095-9983-01c4e3caad29" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_019c1e9e-a1b5-7d9e-96fc-1f0fda954250" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019c1e9d-ed03-754a-b13f-ea7c39103294" xlink:to="loc_srt_TitleOfIndividualAxis_019c1e9e-a1b5-7d9e-96fc-1f0fda954250" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019c1e9e-a1b5-7d9e-96fc-1f0fda954250_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_019c1e9e-a1b5-7d9e-96fc-1f0fda954250" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019c1e9e-a1b5-7d9e-96fc-1f0fda954250_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019c1e9e-a1b5-7d17-8013-9aaaada73d02" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_019c1e9e-a1b5-7d9e-96fc-1f0fda954250" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019c1e9e-a1b5-7d17-8013-9aaaada73d02" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ExecutiveOfficerMember_019c1e9e-a1b5-71aa-9493-8a9790604a55" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019c1e9e-a1b5-7d17-8013-9aaaada73d02" xlink:to="loc_srt_ExecutiveOfficerMember_019c1e9e-a1b5-71aa-9493-8a9790604a55" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019c1e9e-3eed-746f-aed9-034d8def992a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019c1e9e-3eed-746f-aed9-034d8def992a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesIssuedOrCommittedToIssue_019c1e9e-3eed-7758-bb9f-f49e44537870" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesIssuedOrCommittedToIssue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesIssuedOrCommittedToIssue_019c1e9e-3eed-7758-bb9f-f49e44537870" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019c1e9e-69c1-76b3-8eba-8e0c44c3107b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019c1e9e-69c1-76b3-8eba-8e0c44c3107b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestOneYearFromBalanceSheet_019c1e9e-a1b5-7cda-aac7-8650d1a3e319" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestOneYearFromBalanceSheet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestOneYearFromBalanceSheet_019c1e9e-a1b5-7cda-aac7-8650d1a3e319" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestTwoYearsFromBalanceSheetDate_019c1e9e-a1b5-7361-9fe5-3dfa47f8365e" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestTwoYearsFromBalanceSheetDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestTwoYearsFromBalanceSheetDate_019c1e9e-a1b5-7361-9fe5-3dfa47f8365e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestThreeYearsFromBalanceSheetDate_019c1e9e-a1b5-79d3-b33e-42fd8335873f" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestThreeYearsFromBalanceSheetDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestThreeYearsFromBalanceSheetDate_019c1e9e-a1b5-79d3-b33e-42fd8335873f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestFourYearsFromBalanceSheetDate_019c1e9e-a1b5-7a1f-9c63-d64cfab786ee" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestFourYearsFromBalanceSheetDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestFourYearsFromBalanceSheetDate_019c1e9e-a1b5-7a1f-9c63-d64cfab786ee" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestFiveYearsFromBalanceSheetDate_019c1e9e-a1b5-715f-964f-69fc9971ed0c" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestFiveYearsFromBalanceSheetDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardsExpectedToVestFiveYearsFromBalanceSheetDate_019c1e9e-a1b5-715f-964f-69fc9971ed0c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019c1e9e-a1b5-7c93-b923-dcd95953f7b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019c1e9e-a1b5-7c93-b923-dcd95953f7b8" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019c1e9e-a1b5-7259-8815-589338ac59f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019c1e9e-a1b5-7259-8815-589338ac59f8" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019c1e9e-a1b5-7539-a9ea-3008febbdee9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019c1e9e-a1b5-7539-a9ea-3008febbdee9" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_019c1e9e-a1b5-7aab-aab1-212d90d9632d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_019c1e9e-a1b5-7aab-aab1-212d90d9632d" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_PercentageOfTotalStockholderReturnForPayoutOfShares_019c1e9e-a1b5-7dd2-98fb-48846a9bcbd2" xlink:href="drh-20251231.xsd#drh_PercentageOfTotalStockholderReturnForPayoutOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_drh_PercentageOfTotalStockholderReturnForPayoutOfShares_019c1e9e-a1b5-7dd2-98fb-48846a9bcbd2" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_MaximumPossiblePayoutToExecutiveOfficerAsPercentageOfTargetAward_019c1e9e-a1b5-7023-b36f-8f20fb72f8ef" xlink:href="drh-20251231.xsd#drh_MaximumPossiblePayoutToExecutiveOfficerAsPercentageOfTargetAward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_drh_MaximumPossiblePayoutToExecutiveOfficerAsPercentageOfTargetAward_019c1e9e-a1b5-7023-b36f-8f20fb72f8ef" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_019c1ea0-27d2-791a-85f0-0076dc4b703f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019c1e9e-3eed-7c15-bb4a-5e9b53ebc05d" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_019c1ea0-27d2-791a-85f0-0076dc4b703f" xlink:type="arc" order="14"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/EquityIncentivePlanRestrictedStockAwardsDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#EquityIncentivePlanRestrictedStockAwardsDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/EquityIncentivePlanRestrictedStockAwardsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0b494886-eac1-47eb-a43d-2f47e832829e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c0fb4452-4c61-4286-afbf-31b005e75696" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0b494886-eac1-47eb-a43d-2f47e832829e" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c0fb4452-4c61-4286-afbf-31b005e75696" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_bf82a8eb-b29a-4191-8477-607c9e8a1883" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c0fb4452-4c61-4286-afbf-31b005e75696" xlink:to="loc_us-gaap_AwardTypeAxis_bf82a8eb-b29a-4191-8477-607c9e8a1883" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bf82a8eb-b29a-4191-8477-607c9e8a1883_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_bf82a8eb-b29a-4191-8477-607c9e8a1883" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bf82a8eb-b29a-4191-8477-607c9e8a1883_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_56e022f3-b532-4987-99b1-84468621b22f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_bf82a8eb-b29a-4191-8477-607c9e8a1883" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_56e022f3-b532-4987-99b1-84468621b22f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_daccd38b-b126-4a65-802f-573b49f760e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_56e022f3-b532-4987-99b1-84468621b22f" xlink:to="loc_us-gaap_RestrictedStockMember_daccd38b-b126-4a65-802f-573b49f760e5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_31d6a011-10e1-4d9e-a183-11bc44d88971" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0b494886-eac1-47eb-a43d-2f47e832829e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_31d6a011-10e1-4d9e-a183-11bc44d88971" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_6fb09202-158d-4714-a3fd-90f8f16d6844" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_31d6a011-10e1-4d9e-a183-11bc44d88971" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_6fb09202-158d-4714-a3fd-90f8f16d6844" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_45b2c00c-11a2-4a71-ae9e-384ba403ca24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_31d6a011-10e1-4d9e-a183-11bc44d88971" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_45b2c00c-11a2-4a71-ae9e-384ba403ca24" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_3b4d0520-db78-403d-83b3-3cab5babbf93" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_31d6a011-10e1-4d9e-a183-11bc44d88971" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_3b4d0520-db78-403d-83b3-3cab5babbf93" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_42795191-37fc-4a89-aeb5-077bc8000bfe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_31d6a011-10e1-4d9e-a183-11bc44d88971" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_42795191-37fc-4a89-aeb5-077bc8000bfe" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_c9c3898a-7d76-423b-9d2a-037e2508ccd8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_59c4754b-e01a-4d00-af50-a46f008b84be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0b494886-eac1-47eb-a43d-2f47e832829e" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_59c4754b-e01a-4d00-af50-a46f008b84be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_2de76efa-1707-4e29-ad33-1e3097186882" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_59c4754b-e01a-4d00-af50-a46f008b84be" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_2de76efa-1707-4e29-ad33-1e3097186882" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_4bd3870a-eb60-4568-9d99-ee3440669bae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_59c4754b-e01a-4d00-af50-a46f008b84be" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_4bd3870a-eb60-4568-9d99-ee3440669bae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_fb64eddd-c7bd-401d-a86a-58fb509d4243" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_59c4754b-e01a-4d00-af50-a46f008b84be" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_fb64eddd-c7bd-401d-a86a-58fb509d4243" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_bdab7c3d-19ea-4343-ae4c-ca01a8ec7685" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract_59c4754b-e01a-4d00-af50-a46f008b84be" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_bdab7c3d-19ea-4343-ae4c-ca01a8ec7685" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_2f727844-3dfb-421f-8303-1608f5c8329e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/EquityIncentivePlanFairValueValuationAssumptionsDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#EquityIncentivePlanFairValueValuationAssumptionsDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/EquityIncentivePlanFairValueValuationAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1a57b3ff-8668-4891-b712-15df0fc383ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_e14d3188-8bc5-4076-bfb9-3c0b9ef67410" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1a57b3ff-8668-4891-b712-15df0fc383ff" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_e14d3188-8bc5-4076-bfb9-3c0b9ef67410" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_c9496a3d-706d-4e2f-bfb6-c876c18ba578" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_e14d3188-8bc5-4076-bfb9-3c0b9ef67410" xlink:to="loc_us-gaap_AwardTypeAxis_c9496a3d-706d-4e2f-bfb6-c876c18ba578" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c9496a3d-706d-4e2f-bfb6-c876c18ba578_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_c9496a3d-706d-4e2f-bfb6-c876c18ba578" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c9496a3d-706d-4e2f-bfb6-c876c18ba578_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ffceda8a-b534-4d47-882b-2340c664501b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_c9496a3d-706d-4e2f-bfb6-c876c18ba578" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ffceda8a-b534-4d47-882b-2340c664501b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_678c8ede-81ca-49ac-bf24-b7cb61e468ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ffceda8a-b534-4d47-882b-2340c664501b" xlink:to="loc_us-gaap_PerformanceSharesMember_678c8ede-81ca-49ac-bf24-b7cb61e468ff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_38c87dc5-1369-47c3-a748-7f870d6dd581" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1a57b3ff-8668-4891-b712-15df0fc383ff" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_38c87dc5-1369-47c3-a748-7f870d6dd581" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_bd9f6fd1-fdf7-400c-b208-6b56336f9327" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1a57b3ff-8668-4891-b712-15df0fc383ff" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_bd9f6fd1-fdf7-400c-b208-6b56336f9327" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsFairValueAtGrantDate_3ddc2190-3bc2-4433-bd23-0fea2111f2e2" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsFairValueAtGrantDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1a57b3ff-8668-4891-b712-15df0fc383ff" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsFairValueAtGrantDate_3ddc2190-3bc2-4433-bd23-0fea2111f2e2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharePrice_8b183503-af43-4709-950b-3c30dd12e2b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1a57b3ff-8668-4891-b712-15df0fc383ff" xlink:to="loc_us-gaap_SharePrice_8b183503-af43-4709-950b-3c30dd12e2b8" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/EquityIncentivePlanPerformanceStockUnitsDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#EquityIncentivePlanPerformanceStockUnitsDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/EquityIncentivePlanPerformanceStockUnitsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3f1dffd2-ac1d-4629-bd56-3f39ebed90f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f37f4d8a-4e1c-488a-96d4-41c865207176" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3f1dffd2-ac1d-4629-bd56-3f39ebed90f6" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f37f4d8a-4e1c-488a-96d4-41c865207176" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_2ead89dc-f855-45ee-b54a-bd2dc5c6dfe6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f37f4d8a-4e1c-488a-96d4-41c865207176" xlink:to="loc_us-gaap_AwardTypeAxis_2ead89dc-f855-45ee-b54a-bd2dc5c6dfe6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2ead89dc-f855-45ee-b54a-bd2dc5c6dfe6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_2ead89dc-f855-45ee-b54a-bd2dc5c6dfe6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2ead89dc-f855-45ee-b54a-bd2dc5c6dfe6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0d60f18a-42ca-43b3-bc85-1baa6b1720e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_2ead89dc-f855-45ee-b54a-bd2dc5c6dfe6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0d60f18a-42ca-43b3-bc85-1baa6b1720e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_61f04f42-bf49-4098-9cbe-49134ca606e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0d60f18a-42ca-43b3-bc85-1baa6b1720e9" xlink:to="loc_us-gaap_PerformanceSharesMember_61f04f42-bf49-4098-9cbe-49134ca606e8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_11bf0959-453a-436b-bf10-5eb971ec1c08" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3f1dffd2-ac1d-4629-bd56-3f39ebed90f6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_11bf0959-453a-436b-bf10-5eb971ec1c08" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_fdf43eb1-af1e-4a27-bde8-92ae12535d38" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_11bf0959-453a-436b-bf10-5eb971ec1c08" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_fdf43eb1-af1e-4a27-bde8-92ae12535d38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_0a4be368-2be6-454e-8faf-4e123a5cf050" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_11bf0959-453a-436b-bf10-5eb971ec1c08" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_0a4be368-2be6-454e-8faf-4e123a5cf050" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalSharesFromDividendsNumber_6b217596-7ea0-4095-b3e2-b2ed792f2e23" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalSharesFromDividendsNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_11bf0959-453a-436b-bf10-5eb971ec1c08" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalSharesFromDividendsNumber_6b217596-7ea0-4095-b3e2-b2ed792f2e23" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_922ee102-76f1-4b1b-9e50-d519870424c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_11bf0959-453a-436b-bf10-5eb971ec1c08" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_922ee102-76f1-4b1b-9e50-d519870424c3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_50e5c10f-1bde-4873-9b20-b8d984888f1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_8defda2b-afe9-4bc1-ad58-c18b5f010dec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3f1dffd2-ac1d-4629-bd56-3f39ebed90f6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_8defda2b-afe9-4bc1-ad58-c18b5f010dec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_123c564d-bdf9-4b79-9f6f-31c70c6bcc30" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_8defda2b-afe9-4bc1-ad58-c18b5f010dec" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_123c564d-bdf9-4b79-9f6f-31c70c6bcc30" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_ef84d9b8-4ab9-4cc6-8d80-0a798675d008" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_8defda2b-afe9-4bc1-ad58-c18b5f010dec" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_ef84d9b8-4ab9-4cc6-8d80-0a798675d008" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalSharesFromDividendWeightedAverageGrantDateFairValue_c7e8d026-48ad-49c8-b42d-960d6eb00444" xlink:href="drh-20251231.xsd#drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalSharesFromDividendWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_8defda2b-afe9-4bc1-ad58-c18b5f010dec" xlink:to="loc_drh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalSharesFromDividendWeightedAverageGrantDateFairValue_c7e8d026-48ad-49c8-b42d-960d6eb00444" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_e6080041-7a5c-45fd-92f9-13a7d549c9c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_8defda2b-afe9-4bc1-ad58-c18b5f010dec" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_e6080041-7a5c-45fd-92f9-13a7d549c9c6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_3ba05d7b-a7ec-436b-8513-290a1ef669ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_e0506d29-b5ab-4570-82ad-cf7be36f9e21" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3f1dffd2-ac1d-4629-bd56-3f39ebed90f6" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_e0506d29-b5ab-4570-82ad-cf7be36f9e21" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/EquityIncentivePlanStockAwardsActivityDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#EquityIncentivePlanStockAwardsActivityDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/EquityIncentivePlanStockAwardsActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_41460f43-9465-4149-a9f9-8a0a87d13c75" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a4df042f-0169-4d2c-a749-ce6df732c5f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_41460f43-9465-4149-a9f9-8a0a87d13c75" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a4df042f-0169-4d2c-a749-ce6df732c5f2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_7e9a6cd4-e952-4569-8503-bd7ccb5527a0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a4df042f-0169-4d2c-a749-ce6df732c5f2" xlink:to="loc_us-gaap_AwardTypeAxis_7e9a6cd4-e952-4569-8503-bd7ccb5527a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7e9a6cd4-e952-4569-8503-bd7ccb5527a0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_7e9a6cd4-e952-4569-8503-bd7ccb5527a0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7e9a6cd4-e952-4569-8503-bd7ccb5527a0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_558d865f-c3a2-4bbc-87ff-a2b226b94307" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_7e9a6cd4-e952-4569-8503-bd7ccb5527a0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_558d865f-c3a2-4bbc-87ff-a2b226b94307" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LongTermIncentivePlanUnitMember_ac85429e-23ba-4673-ae65-fcbe42c72340" xlink:href="drh-20251231.xsd#drh_LongTermIncentivePlanUnitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_558d865f-c3a2-4bbc-87ff-a2b226b94307" xlink:to="loc_drh_LongTermIncentivePlanUnitMember_ac85429e-23ba-4673-ae65-fcbe42c72340" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2200945e-76e8-41c1-b9fa-745a92dc30aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_41460f43-9465-4149-a9f9-8a0a87d13c75" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2200945e-76e8-41c1-b9fa-745a92dc30aa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_9f49e8b8-1b19-4ffb-919a-2da88db4e270" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2200945e-76e8-41c1-b9fa-745a92dc30aa" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_9f49e8b8-1b19-4ffb-919a-2da88db4e270" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_20c2e96c-f3ae-4680-a3fa-53c2945ebd3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2200945e-76e8-41c1-b9fa-745a92dc30aa" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_20c2e96c-f3ae-4680-a3fa-53c2945ebd3d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_70c59bb8-d1e9-4a7b-9903-2de77e75bc30" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2200945e-76e8-41c1-b9fa-745a92dc30aa" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_70c59bb8-d1e9-4a7b-9903-2de77e75bc30" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_e932aeac-8367-48ee-ab1a-4c8258a18d81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_4a2f3895-e1b5-4b01-aa0b-f57875b8c31b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_41460f43-9465-4149-a9f9-8a0a87d13c75" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_4a2f3895-e1b5-4b01-aa0b-f57875b8c31b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_e78d72f3-29f3-4aa1-9b62-2ff6b5fdf581" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_4a2f3895-e1b5-4b01-aa0b-f57875b8c31b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_e78d72f3-29f3-4aa1-9b62-2ff6b5fdf581" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_5c8fc91c-a09b-48bc-8a08-5df4a20d1933" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_4a2f3895-e1b5-4b01-aa0b-f57875b8c31b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_5c8fc91c-a09b-48bc-8a08-5df4a20d1933" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_d29049cf-b478-453b-9fad-4f3a35d4d1b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_4a2f3895-e1b5-4b01-aa0b-f57875b8c31b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_d29049cf-b478-453b-9fad-4f3a35d4d1b7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_9edf29bb-c27a-4845-bf15-0564db0640b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/IncomeTaxesScheduleofDistributionsPaidTaxBasisDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#IncomeTaxesScheduleofDistributionsPaidTaxBasisDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/IncomeTaxesScheduleofDistributionsPaidTaxBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableLineItems_a9c92c1c-d311-4acb-8d67-9c800dc69167" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsPayableLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableTable_835628e7-b9a4-4576-a31d-344c3aea2ac3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsPayableTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DividendsPayableLineItems_a9c92c1c-d311-4acb-8d67-9c800dc69167" xlink:to="loc_us-gaap_DividendsPayableTable_835628e7-b9a4-4576-a31d-344c3aea2ac3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_c2a7a210-d087-4b6b-a2bb-502c31e3eceb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DividendsPayableTable_835628e7-b9a4-4576-a31d-344c3aea2ac3" xlink:to="loc_us-gaap_StatementClassOfStockAxis_c2a7a210-d087-4b6b-a2bb-502c31e3eceb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_c2a7a210-d087-4b6b-a2bb-502c31e3eceb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_c2a7a210-d087-4b6b-a2bb-502c31e3eceb" xlink:to="loc_us-gaap_ClassOfStockDomain_c2a7a210-d087-4b6b-a2bb-502c31e3eceb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_a3dcc651-c037-463c-a4fc-0ff1504833d0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_c2a7a210-d087-4b6b-a2bb-502c31e3eceb" xlink:to="loc_us-gaap_ClassOfStockDomain_a3dcc651-c037-463c-a4fc-0ff1504833d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_5aadac0d-aed4-42a9-b56e-6e2b6f352c1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_a3dcc651-c037-463c-a4fc-0ff1504833d0" xlink:to="loc_us-gaap_CommonStockMember_5aadac0d-aed4-42a9-b56e-6e2b6f352c1b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_ce27c612-8dac-4b6f-b2eb-93eff682b743" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_a3dcc651-c037-463c-a4fc-0ff1504833d0" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_ce27c612-8dac-4b6f-b2eb-93eff682b743" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DividendsTypeAxis_ea673601-a824-4eb3-91fb-6b5dc2896b27" xlink:href="drh-20251231.xsd#drh_DividendsTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DividendsPayableTable_835628e7-b9a4-4576-a31d-344c3aea2ac3" xlink:to="loc_drh_DividendsTypeAxis_ea673601-a824-4eb3-91fb-6b5dc2896b27" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DividendsTypeDomain_ea673601-a824-4eb3-91fb-6b5dc2896b27_default" xlink:href="drh-20251231.xsd#drh_DividendsTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_drh_DividendsTypeAxis_ea673601-a824-4eb3-91fb-6b5dc2896b27" xlink:to="loc_drh_DividendsTypeDomain_ea673601-a824-4eb3-91fb-6b5dc2896b27_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DividendsTypeDomain_15f3c47e-8715-44bf-8b3d-dcedf5c01fe6" xlink:href="drh-20251231.xsd#drh_DividendsTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_drh_DividendsTypeAxis_ea673601-a824-4eb3-91fb-6b5dc2896b27" xlink:to="loc_drh_DividendsTypeDomain_15f3c47e-8715-44bf-8b3d-dcedf5c01fe6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_OrdinaryNonQualifiedIncomeMember_3ff40ff1-36bd-496d-bdbf-dcb08b8c102b" xlink:href="drh-20251231.xsd#drh_OrdinaryNonQualifiedIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_DividendsTypeDomain_15f3c47e-8715-44bf-8b3d-dcedf5c01fe6" xlink:to="loc_drh_OrdinaryNonQualifiedIncomeMember_3ff40ff1-36bd-496d-bdbf-dcb08b8c102b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_QualifiedDividendsMember_c4483061-93c7-42e2-8303-d2cc229c6f99" xlink:href="drh-20251231.xsd#drh_QualifiedDividendsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_DividendsTypeDomain_15f3c47e-8715-44bf-8b3d-dcedf5c01fe6" xlink:to="loc_drh_QualifiedDividendsMember_c4483061-93c7-42e2-8303-d2cc229c6f99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DistributionsPaidTaxBasisPerShare_f1594edd-88a7-485c-86c8-a692dcfefe78" xlink:href="drh-20251231.xsd#drh_DistributionsPaidTaxBasisPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsPayableLineItems_a9c92c1c-d311-4acb-8d67-9c800dc69167" xlink:to="loc_drh_DistributionsPaidTaxBasisPerShare_f1594edd-88a7-485c-86c8-a692dcfefe78" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/IncomeTaxesIncomeTaxesPaidDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#IncomeTaxesIncomeTaxesPaidDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/IncomeTaxesIncomeTaxesPaidDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c5505-8290-75b7-8670-911225487dba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionTable_019c5505-8290-7fdc-bac1-de876409894f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidByIndividualJurisdictionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c5505-8290-75b7-8670-911225487dba" xlink:to="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionTable_019c5505-8290-7fdc-bac1-de876409894f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_019c5505-8290-760e-a069-8bba0961486f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionTable_019c5505-8290-7fdc-bac1-de876409894f" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_019c5505-8290-760e-a069-8bba0961486f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c5505-8290-760e-a069-8bba0961486f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c5505-8290-760e-a069-8bba0961486f" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c5505-8290-760e-a069-8bba0961486f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c5505-8290-7b84-b8fe-32135d4d8431" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c5505-8290-760e-a069-8bba0961486f" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c5505-8290-7b84-b8fe-32135d4d8431" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StateAndLocalJurisdictionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c5505-8290-7b84-b8fe-32135d4d8431" xlink:to="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_CA_019c5505-8290-7272-a182-e4986a8e0e0c" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_CA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_CA_019c5505-8290-7272-a182-e4986a8e0e0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_IL_019c5505-8290-7451-8bae-6ed2d94ebdea" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_IL"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_IL_019c5505-8290-7451-8bae-6ed2d94ebdea" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_LA_019c5505-8290-79bc-bad4-015baf963a55" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_LA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_LA_019c5505-8290-79bc-bad4-015baf963a55" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_NY_019c5505-8290-7b77-9904-ce6dd066b28c" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_NY"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_NY_019c5505-8290-7b77-9904-ce6dd066b28c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_TX_019c5505-8290-73b4-a365-1318b3e5c489" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_TX"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_TX_019c5505-8290-73b4-a365-1318b3e5c489" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_VT_019c5505-8290-7bac-98ea-4b11cf399111" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_VT"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_VT_019c5505-8290-7bac-98ea-4b11cf399111" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_MA_019c5505-8290-7aa1-8a82-7c9952ebbe23" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_MA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_MA_019c5505-8290-7aa1-8a82-7c9952ebbe23" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_FL_019c5505-8290-7a65-820b-d3d83d0adcd9" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_FL"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_FL_019c5505-8290-7a65-820b-d3d83d0adcd9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_MT_019c5505-8290-767b-be73-31f2a1ae1d07" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_MT"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_MT_019c5505-8290-767b-be73-31f2a1ae1d07" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_SC_019c5505-8290-7861-904a-a4e083586680" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_SC"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_stpr_SC_019c5505-8290-7861-904a-a4e083586680" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019c5505-8290-7b5a-9cba-1739bcd5be96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignTaxJurisdictionOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StateAndLocalJurisdictionMember_019c86f9-fc02-7ce0-a787-e343bea0bbe4" xlink:to="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019c5505-8290-7b5a-9cba-1739bcd5be96" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidFederalAfterRefundReceived_019c5505-8290-7eb0-9d48-98a2a274a60f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidFederalAfterRefundReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c5505-8290-75b7-8670-911225487dba" xlink:to="loc_us-gaap_IncomeTaxPaidFederalAfterRefundReceived_019c5505-8290-7eb0-9d48-98a2a274a60f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived_019c5505-8290-7d35-ac44-88c07900a3d0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c5505-8290-75b7-8670-911225487dba" xlink:to="loc_us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived_019c5505-8290-7d35-ac44-88c07900a3d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_019c5505-8290-71e0-8f4b-998ea361ddda" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c5505-8290-75b7-8670-911225487dba" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_019c5505-8290-71e0-8f4b-998ea361ddda" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/IncomeTaxesTotalDeferredTaxAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#IncomeTaxesTotalDeferredTaxAssetsandLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/IncomeTaxesTotalDeferredTaxAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLossCarryforwardsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLossCarryforwardsTable_4fd60722-59fc-406d-a838-afa8bbb606b9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLossCarryforwardsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:to="loc_us-gaap_OperatingLossCarryforwardsTable_4fd60722-59fc-406d-a838-afa8bbb606b9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_3d761214-4730-4717-bb94-bfc98aae0c47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_4fd60722-59fc-406d-a838-afa8bbb606b9" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_3d761214-4730-4717-bb94-bfc98aae0c47" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_3d761214-4730-4717-bb94-bfc98aae0c47_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_3d761214-4730-4717-bb94-bfc98aae0c47" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_3d761214-4730-4717-bb94-bfc98aae0c47_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_4d1fd0d1-d8eb-4c5d-ae2f-932ee11d88f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_3d761214-4730-4717-bb94-bfc98aae0c47" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_4d1fd0d1-d8eb-4c5d-ae2f-932ee11d88f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticCountryMember_2255180e-7821-4cb3-b2aa-aca3e76ae610" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DomesticCountryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_4d1fd0d1-d8eb-4c5d-ae2f-932ee11d88f0" xlink:to="loc_us-gaap_DomesticCountryMember_2255180e-7821-4cb3-b2aa-aca3e76ae610" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StateAndLocalJurisdictionMember_7bd7eac7-b386-4696-8ff0-fbd6c20d7743" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StateAndLocalJurisdictionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_4d1fd0d1-d8eb-4c5d-ae2f-932ee11d88f0" xlink:to="loc_us-gaap_StateAndLocalJurisdictionMember_7bd7eac7-b386-4696-8ff0-fbd6c20d7743" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_9c964555-7ad3-49bc-b0a7-05c874174596" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_9c964555-7ad3-49bc-b0a7-05c874174596" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsDeferredIncome_d714660c-faa7-44d4-acc1-5acd90400791" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsDeferredIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:to="loc_us-gaap_DeferredTaxAssetsDeferredIncome_d714660c-faa7-44d4-acc1-5acd90400791" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax_8730172f-884c-4933-afb3-cc765623a30d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax_8730172f-884c-4933-afb3-cc765623a30d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_bb00eb6a-fc6e-439a-81ab-896fe5034938" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_bb00eb6a-fc6e-439a-81ab-896fe5034938" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment_019c871a-c10d-7aed-88e1-ff88bdaaf451" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:to="loc_us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment_019c871a-c10d-7aed-88e1-ff88bdaaf451" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_b2812ffc-04ce-4bd9-bac3-722cdbb909f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_b2812ffc-04ce-4bd9-bac3-722cdbb909f2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_91fb07e3-c4f1-4586-9590-ef27fb6ed523" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_91fb07e3-c4f1-4586-9590-ef27fb6ed523" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_acc8fcd2-b2f1-46ea-8f2e-f07c990c8b56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_c28d5cbe-b2a1-4a05-ad98-7ee7a3a018b2" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_acc8fcd2-b2f1-46ea-8f2e-f07c990c8b56" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#EarningsPerShareDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_drh_EarningsPerShareLineItems_ecd94dba-e0eb-4384-9a65-be33faa751c1" xlink:href="drh-20251231.xsd#drh_EarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_EarningsPerShareTable_72db7530-a710-433b-8320-301e958f5ed7" xlink:href="drh-20251231.xsd#drh_EarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_drh_EarningsPerShareLineItems_ecd94dba-e0eb-4384-9a65-be33faa751c1" xlink:to="loc_drh_EarningsPerShareTable_72db7530-a710-433b-8320-301e958f5ed7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_a278b5c9-8657-43f7-a17c-5edf2f598b2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_drh_EarningsPerShareTable_72db7530-a710-433b-8320-301e958f5ed7" xlink:to="loc_us-gaap_AwardTypeAxis_a278b5c9-8657-43f7-a17c-5edf2f598b2c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a278b5c9-8657-43f7-a17c-5edf2f598b2c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_a278b5c9-8657-43f7-a17c-5edf2f598b2c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a278b5c9-8657-43f7-a17c-5edf2f598b2c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_eedd485e-0980-4f27-8a9d-a4e5a5465128" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_a278b5c9-8657-43f7-a17c-5edf2f598b2c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_eedd485e-0980-4f27-8a9d-a4e5a5465128" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_6c1c3b42-cd5d-4d6d-810d-3e56999f913c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_eedd485e-0980-4f27-8a9d-a4e5a5465128" xlink:to="loc_us-gaap_RestrictedStockMember_6c1c3b42-cd5d-4d6d-810d-3e56999f913c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_c24d8eed-09b9-485f-95a0-03918409501d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_eedd485e-0980-4f27-8a9d-a4e5a5465128" xlink:to="loc_us-gaap_PerformanceSharesMember_c24d8eed-09b9-485f-95a0-03918409501d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract_161ecf35-0ee6-4a1f-bfbc-86ab1e31ef53" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_EarningsPerShareLineItems_ecd94dba-e0eb-4384-9a65-be33faa751c1" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract_161ecf35-0ee6-4a1f-bfbc-86ab1e31ef53" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_351a93d8-3d66-43f4-b36b-23d46755f0c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract_161ecf35-0ee6-4a1f-bfbc-86ab1e31ef53" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_351a93d8-3d66-43f4-b36b-23d46755f0c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_d5cfe0d6-7847-4981-b999-ba11e6919241" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_EarningsPerShareLineItems_ecd94dba-e0eb-4384-9a65-be33faa751c1" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_d5cfe0d6-7847-4981-b999-ba11e6919241" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_90ff75d5-a830-4255-89f0-f12b033f613b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_d5cfe0d6-7847-4981-b999-ba11e6919241" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_90ff75d5-a830-4255-89f0-f12b033f613b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract_b45c3e1a-e731-4641-8ed9-b5173dcb2dff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_d5cfe0d6-7847-4981-b999-ba11e6919241" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract_b45c3e1a-e731-4641-8ed9-b5173dcb2dff" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_5f77d5b4-df23-4e7b-b9e6-d1a272b434b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract_b45c3e1a-e731-4641-8ed9-b5173dcb2dff" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_5f77d5b4-df23-4e7b-b9e6-d1a272b434b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_638addc9-4a83-4b6e-b769-df9b89e44ce1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_d5cfe0d6-7847-4981-b999-ba11e6919241" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_638addc9-4a83-4b6e-b769-df9b89e44ce1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAbstract_ccdd31eb-e54a-4ba4-8b3d-1aa9f85d4bbb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasicAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_EarningsPerShareLineItems_ecd94dba-e0eb-4384-9a65-be33faa751c1" xlink:to="loc_us-gaap_EarningsPerShareBasicAbstract_ccdd31eb-e54a-4ba4-8b3d-1aa9f85d4bbb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_f5f32795-b576-4065-8e8d-337bb24e07d0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicAbstract_ccdd31eb-e54a-4ba4-8b3d-1aa9f85d4bbb" xlink:to="loc_us-gaap_EarningsPerShareBasic_f5f32795-b576-4065-8e8d-337bb24e07d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_733d1186-53dd-414c-abb0-1fe8169902d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicAbstract_ccdd31eb-e54a-4ba4-8b3d-1aa9f85d4bbb" xlink:to="loc_us-gaap_EarningsPerShareDiluted_733d1186-53dd-414c-abb0-1fe8169902d7" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/RelationshipswithManagersandFranchisorsNarrativeDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#RelationshipswithManagersandFranchisorsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/RelationshipswithManagersandFranchisorsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostLineItems_65c67059-a48f-4d04-a26d-c1f39e588160" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostTable_08e7512f-bbaf-424d-b01d-ca79c2e29cde" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_65c67059-a48f-4d04-a26d-c1f39e588160" xlink:to="loc_us-gaap_CapitalizedContractCostTable_08e7512f-bbaf-424d-b01d-ca79c2e29cde" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_61a932be-6cae-4547-912d-4e0049671724" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_CapitalizedContractCostTable_08e7512f-bbaf-424d-b01d-ca79c2e29cde" xlink:to="loc_srt_RangeAxis_61a932be-6cae-4547-912d-4e0049671724" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_61a932be-6cae-4547-912d-4e0049671724_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_61a932be-6cae-4547-912d-4e0049671724" xlink:to="loc_srt_RangeMember_61a932be-6cae-4547-912d-4e0049671724_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_badd7444-36f7-4484-ad98-369d79e4eb09" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_61a932be-6cae-4547-912d-4e0049671724" xlink:to="loc_srt_RangeMember_badd7444-36f7-4484-ad98-369d79e4eb09" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_35732c6c-2fe3-45a2-affc-93db585f4c13" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_badd7444-36f7-4484-ad98-369d79e4eb09" xlink:to="loc_srt_MinimumMember_35732c6c-2fe3-45a2-affc-93db585f4c13" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_42b7a847-1193-4c86-bbc9-523ea337c1e6" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_badd7444-36f7-4484-ad98-369d79e4eb09" xlink:to="loc_srt_MaximumMember_42b7a847-1193-4c86-bbc9-523ea337c1e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_BaseManagementFeePercentage_6cfada8c-fa66-4fdb-8db8-a9020ad3b7b5" xlink:href="drh-20251231.xsd#drh_BaseManagementFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_65c67059-a48f-4d04-a26d-c1f39e588160" xlink:to="loc_drh_BaseManagementFeePercentage_6cfada8c-fa66-4fdb-8db8-a9020ad3b7b5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_NumberOfHotelsEarnedIncentiveManagementFees_cc2e5b4f-5333-400a-98a7-0a7365543269" xlink:href="drh-20251231.xsd#drh_NumberOfHotelsEarnedIncentiveManagementFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_65c67059-a48f-4d04-a26d-c1f39e588160" xlink:to="loc_drh_NumberOfHotelsEarnedIncentiveManagementFees_cc2e5b4f-5333-400a-98a7-0a7365543269" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/RelationshipswithManagersandFranchisorsScheduleofManagementFeesDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#RelationshipswithManagersandFranchisorsScheduleofManagementFeesDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/RelationshipswithManagersandFranchisorsScheduleofManagementFeesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostLineItems_0045102c-a6a4-451f-b5fb-4bb7b10c7151" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostTable_30f8f981-9379-4e4c-98df-237d3071ee57" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_0045102c-a6a4-451f-b5fb-4bb7b10c7151" xlink:to="loc_us-gaap_CapitalizedContractCostTable_30f8f981-9379-4e4c-98df-237d3071ee57" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_1654f1f9-004a-4f5c-ab05-85618363bbc8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_CapitalizedContractCostTable_30f8f981-9379-4e4c-98df-237d3071ee57" xlink:to="loc_srt_ProductOrServiceAxis_1654f1f9-004a-4f5c-ab05-85618363bbc8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_1654f1f9-004a-4f5c-ab05-85618363bbc8_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_1654f1f9-004a-4f5c-ab05-85618363bbc8" xlink:to="loc_srt_ProductsAndServicesDomain_1654f1f9-004a-4f5c-ab05-85618363bbc8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_c6fab745-f9ca-46bb-adfd-b5b56a3507b1" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_1654f1f9-004a-4f5c-ab05-85618363bbc8" xlink:to="loc_srt_ProductsAndServicesDomain_c6fab745-f9ca-46bb-adfd-b5b56a3507b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelManagementMember_cf2b99b5-5d7a-4f1f-bcd2-6914418d0764" xlink:href="drh-20251231.xsd#drh_HotelManagementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_c6fab745-f9ca-46bb-adfd-b5b56a3507b1" xlink:to="loc_drh_HotelManagementMember_cf2b99b5-5d7a-4f1f-bcd2-6914418d0764" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_BaseManagementFeesExpense_7489cad1-93b2-41cd-b0b3-27ced1b53f09" xlink:href="drh-20251231.xsd#drh_BaseManagementFeesExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_0045102c-a6a4-451f-b5fb-4bb7b10c7151" xlink:to="loc_drh_BaseManagementFeesExpense_7489cad1-93b2-41cd-b0b3-27ced1b53f09" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_IncentiveManagementFeesExpense_8c46a24b-2d14-4ba8-aa22-dbb62cf42266" xlink:href="drh-20251231.xsd#drh_IncentiveManagementFeesExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_0045102c-a6a4-451f-b5fb-4bb7b10c7151" xlink:to="loc_drh_IncentiveManagementFeesExpense_8c46a24b-2d14-4ba8-aa22-dbb62cf42266" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_AmortizationOfDeferredIncomeRelatedToKeyMoney_1e3220f8-983a-49eb-acac-0b8c25953dc2" xlink:href="drh-20251231.xsd#drh_AmortizationOfDeferredIncomeRelatedToKeyMoney"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_0045102c-a6a4-451f-b5fb-4bb7b10c7151" xlink:to="loc_drh_AmortizationOfDeferredIncomeRelatedToKeyMoney_1e3220f8-983a-49eb-acac-0b8c25953dc2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_AmortizationOfUnfavorableContractLiabilities_78a81a44-450b-405b-9955-5095ca8d5f9b" xlink:href="drh-20251231.xsd#drh_AmortizationOfUnfavorableContractLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_0045102c-a6a4-451f-b5fb-4bb7b10c7151" xlink:to="loc_drh_AmortizationOfUnfavorableContractLiabilities_78a81a44-450b-405b-9955-5095ca8d5f9b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_4c1b5a83-a72f-4d69-b245-926c32eb29d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_0045102c-a6a4-451f-b5fb-4bb7b10c7151" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_4c1b5a83-a72f-4d69-b245-926c32eb29d9" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/RelationshipswithManagersandFranchisorsFranchiseFeesDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#RelationshipswithManagersandFranchisorsFranchiseFeesDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/RelationshipswithManagersandFranchisorsFranchiseFeesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostLineItems_44eb8689-32c1-4f08-8613-1b3afd56a082" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostTable_b6bd6274-c508-4776-9369-3a7f5ce8655a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalizedContractCostTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_44eb8689-32c1-4f08-8613-1b3afd56a082" xlink:to="loc_us-gaap_CapitalizedContractCostTable_b6bd6274-c508-4776-9369-3a7f5ce8655a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_935d1ca0-6d2c-410b-b2b9-9ccdc80b4829" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_CapitalizedContractCostTable_b6bd6274-c508-4776-9369-3a7f5ce8655a" xlink:to="loc_srt_ProductOrServiceAxis_935d1ca0-6d2c-410b-b2b9-9ccdc80b4829" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_935d1ca0-6d2c-410b-b2b9-9ccdc80b4829_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_935d1ca0-6d2c-410b-b2b9-9ccdc80b4829" xlink:to="loc_srt_ProductsAndServicesDomain_935d1ca0-6d2c-410b-b2b9-9ccdc80b4829_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_e8ad5c4c-4c46-4f8b-a22b-7a7c20523d6f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_935d1ca0-6d2c-410b-b2b9-9ccdc80b4829" xlink:to="loc_srt_ProductsAndServicesDomain_e8ad5c4c-4c46-4f8b-a22b-7a7c20523d6f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FranchiseMember_6c7618b5-18d9-4c4f-9ce5-230dda6ec010" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FranchiseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_e8ad5c4c-4c46-4f8b-a22b-7a7c20523d6f" xlink:to="loc_us-gaap_FranchiseMember_6c7618b5-18d9-4c4f-9ce5-230dda6ec010" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OccupancyMember_5355db74-10de-4cbb-823b-b2caae953a8b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OccupancyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_e8ad5c4c-4c46-4f8b-a22b-7a7c20523d6f" xlink:to="loc_us-gaap_OccupancyMember_5355db74-10de-4cbb-823b-b2caae953a8b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FoodAndBeverageMember_dd957249-da2f-45e4-a187-8f4c3f186883" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FoodAndBeverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_e8ad5c4c-4c46-4f8b-a22b-7a7c20523d6f" xlink:to="loc_us-gaap_FoodAndBeverageMember_dd957249-da2f-45e4-a187-8f4c3f186883" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_f308d953-5e70-4418-ae3b-7b397eb8be9e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_CapitalizedContractCostTable_b6bd6274-c508-4776-9369-3a7f5ce8655a" xlink:to="loc_srt_RangeAxis_f308d953-5e70-4418-ae3b-7b397eb8be9e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_f308d953-5e70-4418-ae3b-7b397eb8be9e_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_f308d953-5e70-4418-ae3b-7b397eb8be9e" xlink:to="loc_srt_RangeMember_f308d953-5e70-4418-ae3b-7b397eb8be9e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_e6c92770-9240-4f55-8aa0-349dc8a05ab8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_f308d953-5e70-4418-ae3b-7b397eb8be9e" xlink:to="loc_srt_RangeMember_e6c92770-9240-4f55-8aa0-349dc8a05ab8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_c8681647-cadf-4d98-95c9-ffb51e5ad6b9" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_e6c92770-9240-4f55-8aa0-349dc8a05ab8" xlink:to="loc_srt_MinimumMember_c8681647-cadf-4d98-95c9-ffb51e5ad6b9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_12ef746d-e602-4873-895d-2ba3935838eb" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_e6c92770-9240-4f55-8aa0-349dc8a05ab8" xlink:to="loc_srt_MaximumMember_12ef746d-e602-4873-895d-2ba3935838eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_NumberOfFranchisedHotels_be14b689-5537-4335-968c-abdd568d2c95" xlink:href="drh-20251231.xsd#drh_NumberOfFranchisedHotels"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_44eb8689-32c1-4f08-8613-1b3afd56a082" xlink:to="loc_drh_NumberOfFranchisedHotels_be14b689-5537-4335-968c-abdd568d2c95" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CostOfGoodsAndServicesSoldPercentage_e55a4b8f-8c78-4a75-ad46-c8a6179f199a" xlink:href="drh-20251231.xsd#drh_CostOfGoodsAndServicesSoldPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_44eb8689-32c1-4f08-8613-1b3afd56a082" xlink:to="loc_drh_CostOfGoodsAndServicesSoldPercentage_e55a4b8f-8c78-4a75-ad46-c8a6179f199a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CostOfGoodsAndServicesSoldGross_1c7648b6-d055-47ef-abc9-09730980d2de" xlink:href="drh-20251231.xsd#drh_CostOfGoodsAndServicesSoldGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_44eb8689-32c1-4f08-8613-1b3afd56a082" xlink:to="loc_drh_CostOfGoodsAndServicesSoldGross_1c7648b6-d055-47ef-abc9-09730980d2de" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CostOfGoodsAndServicesSoldAmortizationOfDeferredIncomeRelatedToKeyMoney_fdf3fdfc-5619-4fac-9a95-edbc17a45e9f" xlink:href="drh-20251231.xsd#drh_CostOfGoodsAndServicesSoldAmortizationOfDeferredIncomeRelatedToKeyMoney"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_44eb8689-32c1-4f08-8613-1b3afd56a082" xlink:to="loc_drh_CostOfGoodsAndServicesSoldAmortizationOfDeferredIncomeRelatedToKeyMoney_fdf3fdfc-5619-4fac-9a95-edbc17a45e9f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_1b8610f0-767c-4711-835c-52718de71a5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizedContractCostLineItems_44eb8689-32c1-4f08-8613-1b3afd56a082" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_1b8610f0-767c-4711-835c-52718de71a5b" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/SegmentReportingNarrativeDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#SegmentReportingNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/SegmentReportingNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_383ed540-b370-4008-99d7-233fa385a0bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_7fc177ef-9872-447b-b018-eeff489d4798" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_383ed540-b370-4008-99d7-233fa385a0bf" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_7fc177ef-9872-447b-b018-eeff489d4798" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_8d9cf720-d67b-4396-b651-cf5fd034fb82" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_7fc177ef-9872-447b-b018-eeff489d4798" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_8d9cf720-d67b-4396-b651-cf5fd034fb82" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8d9cf720-d67b-4396-b651-cf5fd034fb82_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_8d9cf720-d67b-4396-b651-cf5fd034fb82" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8d9cf720-d67b-4396-b651-cf5fd034fb82_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_7b9cd516-0600-4217-a020-6ca86b5b6803" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_8d9cf720-d67b-4396-b651-cf5fd034fb82" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_7b9cd516-0600-4217-a020-6ca86b5b6803" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HotelOwnedMember_39496928-becd-468a-b41b-6adbfa2764ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HotelOwnedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_7b9cd516-0600-4217-a020-6ca86b5b6803" xlink:to="loc_us-gaap_HotelOwnedMember_39496928-becd-468a-b41b-6adbfa2764ab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_bf03f2a4-91db-4448-9b43-2b1318444658" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_383ed540-b370-4008-99d7-233fa385a0bf" xlink:to="loc_us-gaap_NumberOfReportableSegments_bf03f2a4-91db-4448-9b43-2b1318444658" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForCapitalImprovements_b9eb298e-8aa7-466a-aedb-97eece996e80" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForCapitalImprovements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_383ed540-b370-4008-99d7-233fa385a0bf" xlink:to="loc_us-gaap_PaymentsForCapitalImprovements_b9eb298e-8aa7-466a-aedb-97eece996e80" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/SegmentReportingRevenuesforOurHotelOwnershipSegmentReconciledDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#SegmentReportingRevenuesforOurHotelOwnershipSegmentReconciledDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/SegmentReportingRevenuesforOurHotelOwnershipSegmentReconciledDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_8958dbbb-a73e-48a6-9431-b046ebb334f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_8958dbbb-a73e-48a6-9431-b046ebb334f3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_83e176da-ba83-439c-a8a9-b4fd6787d3c7" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_8958dbbb-a73e-48a6-9431-b046ebb334f3" xlink:to="loc_srt_ProductOrServiceAxis_83e176da-ba83-439c-a8a9-b4fd6787d3c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_83e176da-ba83-439c-a8a9-b4fd6787d3c7_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_83e176da-ba83-439c-a8a9-b4fd6787d3c7" xlink:to="loc_srt_ProductsAndServicesDomain_83e176da-ba83-439c-a8a9-b4fd6787d3c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_7578f349-16f6-4eba-a641-f1b097ae2afc" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_83e176da-ba83-439c-a8a9-b4fd6787d3c7" xlink:to="loc_srt_ProductsAndServicesDomain_7578f349-16f6-4eba-a641-f1b097ae2afc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OccupancyMember_a7785d03-3529-4146-8aba-78c26de98fa9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OccupancyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_7578f349-16f6-4eba-a641-f1b097ae2afc" xlink:to="loc_us-gaap_OccupancyMember_a7785d03-3529-4146-8aba-78c26de98fa9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FoodAndBeverageMember_39f9df42-059a-4578-8d59-867735f36090" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FoodAndBeverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_7578f349-16f6-4eba-a641-f1b097ae2afc" xlink:to="loc_us-gaap_FoodAndBeverageMember_39f9df42-059a-4578-8d59-867735f36090" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HotelOwnedMember_6419084c-12b7-4290-be79-8d75433bf9f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HotelOwnedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_7578f349-16f6-4eba-a641-f1b097ae2afc" xlink:to="loc_us-gaap_HotelOwnedMember_6419084c-12b7-4290-be79-8d75433bf9f2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelManagementMember_e281d634-e0de-474d-9bb9-1d707c4d8b2d" xlink:href="drh-20251231.xsd#drh_HotelManagementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_7578f349-16f6-4eba-a641-f1b097ae2afc" xlink:to="loc_drh_HotelManagementMember_e281d634-e0de-474d-9bb9-1d707c4d8b2d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FranchiseMember_8fa6ca86-ae8f-4dbb-9786-ffbeecc0beb5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FranchiseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_7578f349-16f6-4eba-a641-f1b097ae2afc" xlink:to="loc_us-gaap_FranchiseMember_8fa6ca86-ae8f-4dbb-9786-ffbeecc0beb5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_PropertyTaxesMember_3e7647fd-62ab-4b73-ad8b-80259764fd54" xlink:href="drh-20251231.xsd#drh_PropertyTaxesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_7578f349-16f6-4eba-a641-f1b097ae2afc" xlink:to="loc_drh_PropertyTaxesMember_3e7647fd-62ab-4b73-ad8b-80259764fd54" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_57b6ab2d-dbf7-4ce1-841c-16e5237e8108" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_8958dbbb-a73e-48a6-9431-b046ebb334f3" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_57b6ab2d-dbf7-4ce1-841c-16e5237e8108" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_57b6ab2d-dbf7-4ce1-841c-16e5237e8108_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_57b6ab2d-dbf7-4ce1-841c-16e5237e8108" xlink:to="loc_us-gaap_SegmentDomain_57b6ab2d-dbf7-4ce1-841c-16e5237e8108_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_3fe9a1e6-8a6c-44b0-92f1-1af42d09437a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_57b6ab2d-dbf7-4ce1-841c-16e5237e8108" xlink:to="loc_us-gaap_SegmentDomain_3fe9a1e6-8a6c-44b0-92f1-1af42d09437a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelOwnershipSegmentMember_2d0b71f0-b267-44cf-b9a7-52c00c84e895" xlink:href="drh-20251231.xsd#drh_HotelOwnershipSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_3fe9a1e6-8a6c-44b0-92f1-1af42d09437a" xlink:to="loc_drh_HotelOwnershipSegmentMember_2d0b71f0-b267-44cf-b9a7-52c00c84e895" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_c539f4aa-9073-40db-a1c1-84360e0baffc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_c539f4aa-9073-40db-a1c1-84360e0baffc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_61cae9c6-21cc-4a48-ba88-e0323db40650" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_61cae9c6-21cc-4a48-ba88-e0323db40650" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_46e36cc4-60bb-4677-a89f-6897e326bd7f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_46e36cc4-60bb-4677-a89f-6897e326bd7f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_EarningsBeforeInterestTaxDepreciationAndAmortization_5abb0f34-70ca-4d2a-bb3f-c690083ff161" xlink:href="drh-20251231.xsd#drh_EarningsBeforeInterestTaxDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_drh_EarningsBeforeInterestTaxDepreciationAndAmortization_5abb0f34-70ca-4d2a-bb3f-c690083ff161" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_NonCashLeaseExpenseAndOtherAmortization_67276c87-fa8a-458f-8c3d-1d6aa0a3016b" xlink:href="drh-20251231.xsd#drh_NonCashLeaseExpenseAndOtherAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_drh_NonCashLeaseExpenseAndOtherAmortization_67276c87-fa8a-458f-8c3d-1d6aa0a3016b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreOpeningCosts_de9fe591-d102-4ccf-a281-a58a80ec76ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreOpeningCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_PreOpeningCosts_de9fe591-d102-4ccf-a281-a58a80ec76ac" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_30f14495-5b6b-43c2-86b0-ebab60b40b92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_AssetImpairmentCharges_30f14495-5b6b-43c2-86b0-ebab60b40b92" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization_9359f3ed-800f-4240-9cc8-0414a3f72463" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization_9359f3ed-800f-4240-9cc8-0414a3f72463" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_430e4105-b591-42fd-a897-9108c7389f36" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_430e4105-b591-42fd-a897-9108c7389f36" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_517adc50-b590-4263-bfdb-a03859a6c798" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_InterestExpenseNonoperating_517adc50-b590-4263-bfdb-a03859a6c798" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_3883812a-2f51-4e52-bc15-c387cd4db14e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_InvestmentIncomeInterest_3883812a-2f51-4e52-bc15-c387cd4db14e" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_9081bbd9-6737-4bb1-b61c-41b9ccdeeea0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_9081bbd9-6737-4bb1-b61c-41b9ccdeeea0" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_a8566d67-0273-40a9-9685-be740406611c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_a8566d67-0273-40a9-9685-be740406611c" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_f748ffd5-2a54-413c-a308-6563ceb6a0e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_f748ffd5-2a54-413c-a308-6563ceb6a0e5" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_7d2127c9-b4d4-450d-bf2a-4b16a06a623d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_ca3690f0-34f0-4c5c-ad89-2b0c4f863f86" xlink:to="loc_us-gaap_ProfitLoss_7d2127c9-b4d4-450d-bf2a-4b16a06a623d" xlink:type="arc" order="14"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/SegmentReportingAssetsDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#SegmentReportingAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/SegmentReportingAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_d8ffc903-ef22-434e-a550-24859c4a34b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_22a9c515-2e45-4173-8555-c9b7ac16fdda" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_d8ffc903-ef22-434e-a550-24859c4a34b3" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_22a9c515-2e45-4173-8555-c9b7ac16fdda" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_88fe0dcc-9090-42fb-b397-c22b3843ea18" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_22a9c515-2e45-4173-8555-c9b7ac16fdda" xlink:to="loc_srt_ConsolidationItemsAxis_88fe0dcc-9090-42fb-b397-c22b3843ea18" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_88fe0dcc-9090-42fb-b397-c22b3843ea18_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_88fe0dcc-9090-42fb-b397-c22b3843ea18" xlink:to="loc_srt_ConsolidationItemsDomain_88fe0dcc-9090-42fb-b397-c22b3843ea18_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_bdad14d6-4ff6-4d2c-b9dd-05324a1f1e63" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_88fe0dcc-9090-42fb-b397-c22b3843ea18" xlink:to="loc_srt_ConsolidationItemsDomain_bdad14d6-4ff6-4d2c-b9dd-05324a1f1e63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_b8fa2850-42c5-4d79-99b0-1aedcfb61410" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_bdad14d6-4ff6-4d2c-b9dd-05324a1f1e63" xlink:to="loc_us-gaap_OperatingSegmentsMember_b8fa2850-42c5-4d79-99b0-1aedcfb61410" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_e2e888fd-52ae-4b1e-afa8-b8dae87bee15" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_bdad14d6-4ff6-4d2c-b9dd-05324a1f1e63" xlink:to="loc_us-gaap_CorporateNonSegmentMember_e2e888fd-52ae-4b1e-afa8-b8dae87bee15" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_634b38ca-128a-44cc-aa71-a97461a2a983" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_22a9c515-2e45-4173-8555-c9b7ac16fdda" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_634b38ca-128a-44cc-aa71-a97461a2a983" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_634b38ca-128a-44cc-aa71-a97461a2a983_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_634b38ca-128a-44cc-aa71-a97461a2a983" xlink:to="loc_us-gaap_SegmentDomain_634b38ca-128a-44cc-aa71-a97461a2a983_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_1c7662a0-bc08-46f8-9d2b-4216ec8027ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_634b38ca-128a-44cc-aa71-a97461a2a983" xlink:to="loc_us-gaap_SegmentDomain_1c7662a0-bc08-46f8-9d2b-4216ec8027ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelOwnershipSegmentMember_e4fed590-ed6e-42fb-81ed-7bfe709bb799" xlink:href="drh-20251231.xsd#drh_HotelOwnershipSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_1c7662a0-bc08-46f8-9d2b-4216ec8027ab" xlink:to="loc_drh_HotelOwnershipSegmentMember_e4fed590-ed6e-42fb-81ed-7bfe709bb799" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_a9cb17a6-e165-4dc1-aa42-72c758a96bfc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_d8ffc903-ef22-434e-a550-24859c4a34b3" xlink:to="loc_us-gaap_Assets_a9cb17a6-e165-4dc1-aa42-72c758a96bfc" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.drhc.com/role/ScheduleIIIRealEstateandAccumulatedDepreciationDetails" xlink:type="simple" xlink:href="drh-20251231.xsd#ScheduleIIIRealEstateandAccumulatedDepreciationDetails"/>
  <link:definitionLink xlink:role="http://www.drhc.com/role/ScheduleIIIRealEstateandAccumulatedDepreciationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationByPropertyTable_7161e685-cc5c-4c7b-bd88-3ca4dc2822e9" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationByPropertyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationByPropertyTable_7161e685-cc5c-4c7b-bd88-3ca4dc2822e9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_8a618f6e-a0ac-4d8a-8af3-f5954f6ebe9f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationByPropertyTable_7161e685-cc5c-4c7b-bd88-3ca4dc2822e9" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_8a618f6e-a0ac-4d8a-8af3-f5954f6ebe9f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8a618f6e-a0ac-4d8a-8af3-f5954f6ebe9f_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_8a618f6e-a0ac-4d8a-8af3-f5954f6ebe9f" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8a618f6e-a0ac-4d8a-8af3-f5954f6ebe9f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_8a618f6e-a0ac-4d8a-8af3-f5954f6ebe9f" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ACHotelMinneapolisDowntownMember_628afd0f-72cc-432e-b437-ade7f4eb2e27" xlink:href="drh-20251231.xsd#drh_ACHotelMinneapolisDowntownMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_ACHotelMinneapolisDowntownMember_628afd0f-72cc-432e-b437-ade7f4eb2e27" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_AtlantaMarriottAlpharettaMember_e70df7a7-8c0a-4217-9830-b3c6a8dc47e1" xlink:href="drh-20251231.xsd#drh_AtlantaMarriottAlpharettaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_AtlantaMarriottAlpharettaMember_e70df7a7-8c0a-4217-9830-b3c6a8dc47e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_BourbonOrleansHotelMember_5b08731e-62dc-4a13-ad0d-da053741affb" xlink:href="drh-20251231.xsd#drh_BourbonOrleansHotelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_BourbonOrleansHotelMember_5b08731e-62dc-4a13-ad0d-da053741affb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CavalloPointTheLodgeAtGoldenGateMember_c1587831-231b-4c05-b7e6-5a298674cf4e" xlink:href="drh-20251231.xsd#drh_CavalloPointTheLodgeAtGoldenGateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_CavalloPointTheLodgeAtGoldenGateMember_c1587831-231b-4c05-b7e6-5a298674cf4e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ChicagoMarriottDowntownMagnificentMileMember_53a132f8-cfcd-4d69-833a-a4c7cba103ab" xlink:href="drh-20251231.xsd#drh_ChicagoMarriottDowntownMagnificentMileMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_ChicagoMarriottDowntownMagnificentMileMember_53a132f8-cfcd-4d69-833a-a4c7cba103ab" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ChicoHotSpringsResortDaySpaMember_91052e93-098b-4c7e-ae7a-13e6ca759e02" xlink:href="drh-20251231.xsd#drh_ChicoHotSpringsResortDaySpaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_ChicoHotSpringsResortDaySpaMember_91052e93-098b-4c7e-ae7a-13e6ca759e02" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_EmbassySuitesByHiltonBethesdaMember_0342d028-6dcd-4f8e-984d-eae6c55acd70" xlink:href="drh-20251231.xsd#drh_EmbassySuitesByHiltonBethesdaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_EmbassySuitesByHiltonBethesdaMember_0342d028-6dcd-4f8e-984d-eae6c55acd70" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_TheGwenHotelMember_24f42f6a-1ce9-443c-a91a-579036610341" xlink:href="drh-20251231.xsd#drh_TheGwenHotelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_TheGwenHotelMember_24f42f6a-1ce9-443c-a91a-579036610341" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CourtyardDenverDowntownMember_69f214c1-9ab6-495e-9fd3-b290f246c7ed" xlink:href="drh-20251231.xsd#drh_CourtyardDenverDowntownMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_CourtyardDenverDowntownMember_69f214c1-9ab6-495e-9fd3-b290f246c7ed" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CourtyardNewYorkManhattanFifthAvenueMember_4021456a-e449-4ff1-b51d-e78540f38676" xlink:href="drh-20251231.xsd#drh_CourtyardNewYorkManhattanFifthAvenueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_CourtyardNewYorkManhattanFifthAvenueMember_4021456a-e449-4ff1-b51d-e78540f38676" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_CourtyardNewYorkManhattanMidtownEastMember_4383f1fe-be37-48ad-b7a0-f0764e0b2d96" xlink:href="drh-20251231.xsd#drh_CourtyardNewYorkManhattanMidtownEastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_CourtyardNewYorkManhattanMidtownEastMember_4383f1fe-be37-48ad-b7a0-f0764e0b2d96" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HavanaCabanaKeyWestMember_825573d4-265d-4836-891b-86087c0671b2" xlink:href="drh-20251231.xsd#drh_HavanaCabanaKeyWestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_HavanaCabanaKeyWestMember_825573d4-265d-4836-891b-86087c0671b2" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HendersonBeachResortMember_c7e89359-93fb-48e0-b123-378fc6f58674" xlink:href="drh-20251231.xsd#drh_HendersonBeachResortMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_HendersonBeachResortMember_c7e89359-93fb-48e0-b123-378fc6f58674" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HendersonParkInnMember_fc656206-782c-47aa-826b-652efa46b035" xlink:href="drh-20251231.xsd#drh_HendersonParkInnMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_HendersonParkInnMember_fc656206-782c-47aa-826b-652efa46b035" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelChamplainBurlingtonMember_a5b09fea-5f2f-488f-ae94-577b81678892" xlink:href="drh-20251231.xsd#drh_HotelChamplainBurlingtonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_HotelChamplainBurlingtonMember_a5b09fea-5f2f-488f-ae94-577b81678892" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HiltonGardenInnNewYorkTimesSquareCentralMember_d64ce7ba-8520-40f1-b5dd-bb687f45977b" xlink:href="drh-20251231.xsd#drh_HiltonGardenInnNewYorkTimesSquareCentralMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_HiltonGardenInnNewYorkTimesSquareCentralMember_d64ce7ba-8520-40f1-b5dd-bb687f45977b" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelClioMember_c6ed0293-a1f7-4214-849c-ddda6c481392" xlink:href="drh-20251231.xsd#drh_HotelClioMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_HotelClioMember_c6ed0293-a1f7-4214-849c-ddda6c481392" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelEmblemSanFranciscoMember_8a31cdd4-ff9a-44ad-8c56-cc071e2d4f6b" xlink:href="drh-20251231.xsd#drh_HotelEmblemSanFranciscoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_HotelEmblemSanFranciscoMember_8a31cdd4-ff9a-44ad-8c56-cc071e2d4f6b" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_HotelPalomarPhoenixMember_8ba848fa-985f-4c77-a2d4-25d1051d11f5" xlink:href="drh-20251231.xsd#drh_HotelPalomarPhoenixMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_HotelPalomarPhoenixMember_8ba848fa-985f-4c77-a2d4-25d1051d11f5" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_TheHytheVailMember_148ea286-eb83-44b0-9b00-9ae17641cfec" xlink:href="drh-20251231.xsd#drh_TheHytheVailMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_TheHytheVailMember_148ea286-eb83-44b0-9b00-9ae17641cfec" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_KimptonShorebreakFortLauderdaleBeachResortMember_bf9319f6-0d99-41e1-8742-330aafc31d38" xlink:href="drh-20251231.xsd#drh_KimptonShorebreakFortLauderdaleBeachResortMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_KimptonShorebreakFortLauderdaleBeachResortMember_bf9319f6-0d99-41e1-8742-330aafc31d38" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_KimptonShorebreakHuntingtonBeachResortMember_8e1a3ea8-73f6-4d70-9394-1dab457a22fc" xlink:href="drh-20251231.xsd#drh_KimptonShorebreakHuntingtonBeachResortMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_KimptonShorebreakHuntingtonBeachResortMember_8e1a3ea8-73f6-4d70-9394-1dab457a22fc" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_MargaritavilleBeachHouseKeyWestMember_d7c3c5ca-c95f-4529-a8d8-6d59968af6f9" xlink:href="drh-20251231.xsd#drh_MargaritavilleBeachHouseKeyWestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_MargaritavilleBeachHouseKeyWestMember_d7c3c5ca-c95f-4529-a8d8-6d59968af6f9" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LakeAustinSpaResortMember_825f1361-9123-4b8f-849a-ee9f1c5e9e39" xlink:href="drh-20251231.xsd#drh_LakeAustinSpaResortMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_LakeAustinSpaResortMember_825f1361-9123-4b8f-849a-ee9f1c5e9e39" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_TheLandingLakeTahoeResortSpaMember_fe73222d-9602-4d15-81a0-b17e62c04848" xlink:href="drh-20251231.xsd#drh_TheLandingLakeTahoeResortSpaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_TheLandingLakeTahoeResortSpaMember_fe73222d-9602-4d15-81a0-b17e62c04848" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_LAubergedeSedonaMember_64b01b3f-9025-4640-82bb-00d0ace38ae2" xlink:href="drh-20251231.xsd#drh_LAubergedeSedonaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_LAubergedeSedonaMember_64b01b3f-9025-4640-82bb-00d0ace38ae2" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_SaltLakeCityMarriottDowntownAtCityCreekMember_e464c1a8-dfc7-4575-be36-314818ee65de" xlink:href="drh-20251231.xsd#drh_SaltLakeCityMarriottDowntownAtCityCreekMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_SaltLakeCityMarriottDowntownAtCityCreekMember_e464c1a8-dfc7-4575-be36-314818ee65de" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_TheDagnyBostonMember_d1fec978-4a64-4b03-9063-eef9a6a303d6" xlink:href="drh-20251231.xsd#drh_TheDagnyBostonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_TheDagnyBostonMember_d1fec978-4a64-4b03-9063-eef9a6a303d6" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_TheLindyRenaissanceCharlestonHotelMember_73ad8648-bfc1-4d0c-9fe1-1e5664908137" xlink:href="drh-20251231.xsd#drh_TheLindyRenaissanceCharlestonHotelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_TheLindyRenaissanceCharlestonHotelMember_73ad8648-bfc1-4d0c-9fe1-1e5664908137" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_TheLodgeAtSonomaResortMember_0edc890a-de6d-442c-8e78-ed2e7feac5b7" xlink:href="drh-20251231.xsd#drh_TheLodgeAtSonomaResortMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_TheLodgeAtSonomaResortMember_0edc890a-de6d-442c-8e78-ed2e7feac5b7" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_TranquilityBayBeachfrontResortMember_3b26fea5-540d-4d3e-ba7d-64167d02fc63" xlink:href="drh-20251231.xsd#drh_TranquilityBayBeachfrontResortMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_TranquilityBayBeachfrontResortMember_3b26fea5-540d-4d3e-ba7d-64167d02fc63" xlink:type="arc" order="30"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_WestinBostonSeaportDistrictMember_85c0a65e-8b25-4de7-91f9-3d4561c83d24" xlink:href="drh-20251231.xsd#drh_WestinBostonSeaportDistrictMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_WestinBostonSeaportDistrictMember_85c0a65e-8b25-4de7-91f9-3d4561c83d24" xlink:type="arc" order="31"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_WestinFortLauderdaleBeachResortMember_bfc90603-c85c-43a2-821c-c67bd5ccf36d" xlink:href="drh-20251231.xsd#drh_WestinFortLauderdaleBeachResortMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_WestinFortLauderdaleBeachResortMember_bfc90603-c85c-43a2-821c-c67bd5ccf36d" xlink:type="arc" order="32"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_WestinSanDiegoBayviewMember_eb21e506-96b8-40b9-89a1-cb02223931d4" xlink:href="drh-20251231.xsd#drh_WestinSanDiegoBayviewMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_WestinSanDiegoBayviewMember_eb21e506-96b8-40b9-89a1-cb02223931d4" xlink:type="arc" order="33"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_WorthingtonRenaissanceFortWorthHotelMember_ca703d74-8fd9-42b2-becd-3aee9e25b576" xlink:href="drh-20251231.xsd#drh_WorthingtonRenaissanceFortWorthHotelMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_f41a415c-ced2-47be-8368-d16a7d4f58af" xlink:to="loc_drh_WorthingtonRenaissanceFortWorthHotelMember_ca703d74-8fd9-42b2-becd-3aee9e25b576" xlink:type="arc" order="34"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_dc55e075-fa64-4b91-83a3-e2523082d4b4" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationByPropertyTable_7161e685-cc5c-4c7b-bd88-3ca4dc2822e9" xlink:to="loc_srt_RangeAxis_dc55e075-fa64-4b91-83a3-e2523082d4b4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_dc55e075-fa64-4b91-83a3-e2523082d4b4_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_dc55e075-fa64-4b91-83a3-e2523082d4b4" xlink:to="loc_srt_RangeMember_dc55e075-fa64-4b91-83a3-e2523082d4b4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_236df60d-d7cd-48cd-a3fe-fdbd5ed45de2" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_dc55e075-fa64-4b91-83a3-e2523082d4b4" xlink:to="loc_srt_RangeMember_236df60d-d7cd-48cd-a3fe-fdbd5ed45de2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_66bd73b9-1272-42d1-a4f2-582d40792b5f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_236df60d-d7cd-48cd-a3fe-fdbd5ed45de2" xlink:to="loc_srt_MinimumMember_66bd73b9-1272-42d1-a4f2-582d40792b5f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_bb0e95b3-d736-4be0-9fb4-c2d9fbd7f7c0" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_236df60d-d7cd-48cd-a3fe-fdbd5ed45de2" xlink:to="loc_srt_MaximumMember_bb0e95b3-d736-4be0-9fb4-c2d9fbd7f7c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances_06749bc0-fd5e-4f3d-989d-062ce560caab" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances_06749bc0-fd5e-4f3d-989d-062ce560caab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand_1cf92b53-59b5-4b96-8837-023ff1d7ea1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand_1cf92b53-59b5-4b96-8837-023ff1d7ea1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements_1d3bf54c-a4fe-477f-9bdc-2b43fdd96ed3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements_1d3bf54c-a4fe-477f-9bdc-2b43fdd96ed3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts_c8b2f24d-00e1-46aa-bcfb-f6ffe557de3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts_c8b2f24d-00e1-46aa-bcfb-f6ffe557de3e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand_c545b717-803a-4ea0-ac54-cd47850eadb9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand_c545b717-803a-4ea0-ac54-cd47850eadb9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements_9a15fa67-e75d-4328-8e41-5531c6c55e21" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements_9a15fa67-e75d-4328-8e41-5531c6c55e21" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateGrossAtCarryingValue_938ab301-5d07-436a-964a-29159d96522e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateGrossAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_RealEstateGrossAtCarryingValue_938ab301-5d07-436a-964a-29159d96522e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAccumulatedDepreciation_9555117c-ed86-4f23-8e14-0572f6af6fc3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAccumulatedDepreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_RealEstateAccumulatedDepreciation_9555117c-ed86-4f23-8e14-0572f6af6fc3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNet_9ea2e78a-a5b4-47f2-863e-b928b16c01a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateInvestmentPropertyNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyNet_9ea2e78a-a5b4-47f2-863e-b928b16c01a8" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationLifeUsedForDepreciation1_e09a0e3c-f3d2-4196-916d-d3c884f6037c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAndAccumulatedDepreciationLifeUsedForDepreciation1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_RealEstateAndAccumulatedDepreciationLifeUsedForDepreciation1_e09a0e3c-f3d2-4196-916d-d3c884f6037c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationOfCarryingAmountOfRealEstateInvestmentsRollForward_9e404f62-b5ea-4cc0-a79f-8129f4c52a53" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReconciliationOfCarryingAmountOfRealEstateInvestmentsRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_ReconciliationOfCarryingAmountOfRealEstateInvestmentsRollForward_9e404f62-b5ea-4cc0-a79f-8129f4c52a53" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateGrossAtCarryingValue_28e7875c-605d-4b4f-b8b1-df84296d96e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateGrossAtCarryingValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_AdditionsAbstract_f9c6fbea-effc-45f8-b480-145c8de607f9" xlink:href="drh-20251231.xsd#drh_AdditionsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfCarryingAmountOfRealEstateInvestmentsRollForward_9e404f62-b5ea-4cc0-a79f-8129f4c52a53" xlink:to="loc_drh_AdditionsAbstract_f9c6fbea-effc-45f8-b480-145c8de607f9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateOtherAcquisitions_da0cdb1e-9cd4-4f42-b962-23b4c7c766df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateOtherAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_AdditionsAbstract_f9c6fbea-effc-45f8-b480-145c8de607f9" xlink:to="loc_us-gaap_RealEstateOtherAcquisitions_da0cdb1e-9cd4-4f42-b962-23b4c7c766df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateImprovements_e95c6cc4-aa6a-4af1-afd9-efa63a3c795e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateImprovements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_AdditionsAbstract_f9c6fbea-effc-45f8-b480-145c8de607f9" xlink:to="loc_us-gaap_RealEstateImprovements_e95c6cc4-aa6a-4af1-afd9-efa63a3c795e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_DeductionsAbstract_deba509a-c4d7-40d7-ad02-485fa34fb91a" xlink:href="drh-20251231.xsd#drh_DeductionsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfCarryingAmountOfRealEstateInvestmentsRollForward_9e404f62-b5ea-4cc0-a79f-8129f4c52a53" xlink:to="loc_drh_DeductionsAbstract_deba509a-c4d7-40d7-ad02-485fa34fb91a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_ImpairmentLosses_225c7609-c720-4a18-9d94-b5f1cba2d5fe" xlink:href="drh-20251231.xsd#drh_ImpairmentLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_DeductionsAbstract_deba509a-c4d7-40d7-ad02-485fa34fb91a" xlink:to="loc_drh_ImpairmentLosses_225c7609-c720-4a18-9d94-b5f1cba2d5fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_SECScheduleIIIRealEstateCostOfRealEstateSoldAndOtherDeductions_d829085a-9e18-4208-b0e3-7a8129b46ef1" xlink:href="drh-20251231.xsd#drh_SECScheduleIIIRealEstateCostOfRealEstateSoldAndOtherDeductions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_drh_DeductionsAbstract_deba509a-c4d7-40d7-ad02-485fa34fb91a" xlink:to="loc_drh_SECScheduleIIIRealEstateCostOfRealEstateSoldAndOtherDeductions_d829085a-9e18-4208-b0e3-7a8129b46ef1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateGrossAtCarryingValue_a796e8fb-0e20-485c-80f6-11e92b9dd8a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateGrossAtCarryingValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_3368d19c-f68e-440e-857b-62c159c2572b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_3368d19c-f68e-440e-857b-62c159c2572b" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAccumulatedDepreciation_a825370a-db7b-4a95-8222-24208bb9fca3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAccumulatedDepreciation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense_17b7ad66-0723-48ed-b6cc-8220fbe0d103" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_3368d19c-f68e-440e-857b-62c159c2572b" xlink:to="loc_us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense_17b7ad66-0723-48ed-b6cc-8220fbe0d103" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_drh_SECScheduleIIIRealEstateAccumulatedDepreciationRealEstateSoldAndOtherDeductions_2edb6aee-0a3c-4ca7-a437-8094c18f8f03" xlink:href="drh-20251231.xsd#drh_SECScheduleIIIRealEstateAccumulatedDepreciationRealEstateSoldAndOtherDeductions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_3368d19c-f68e-440e-857b-62c159c2572b" xlink:to="loc_drh_SECScheduleIIIRealEstateAccumulatedDepreciationRealEstateSoldAndOtherDeductions_2edb6aee-0a3c-4ca7-a437-8094c18f8f03" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAccumulatedDepreciationOtherDeductions_4eb00f23-cb69-49eb-a090-2b33f0371ceb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAccumulatedDepreciationOtherDeductions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfRealEstateAccumulatedDepreciationRollForward_3368d19c-f68e-440e-857b-62c159c2572b" xlink:to="loc_us-gaap_RealEstateAccumulatedDepreciationOtherDeductions_4eb00f23-cb69-49eb-a090-2b33f0371ceb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateAccumulatedDepreciation_69ecbd17-94a4-4b8c-bd27-b01d546aaa47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateAccumulatedDepreciation"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateFederalIncomeTaxBasis_642325d9-5f68-41ef-b1cd-3859ea28fa47" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateFederalIncomeTaxBasis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationLineItems_abf078f1-e013-4580-b1dc-ed2e65160992" xlink:to="loc_srt_RealEstateFederalIncomeTaxBasis_642325d9-5f68-41ef-b1cd-3859ea28fa47" xlink:type="arc" order="12"/>
  </link:definitionLink>
</link:linkbase>
