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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019d4fe7-0885-7d49-8d92-a7d8edbdc34f,g:3ba396c5-fb82-4db3-a12a-7f25f5ef49bb-->
<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.zionsbancorp.com/role/Cover" xlink:type="simple" xlink:href="zions-20260625.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019d6da4-4d13-7144-968b-0082ec065e56" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019d6da3-d14c-72bb-9688-ae90d990ea34" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_019d6da4-4d13-7144-968b-0082ec065e56" xlink:to="loc_dei_DocumentInformationTable_019d6da3-d14c-72bb-9688-ae90d990ea34" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6da3-e567-7c5b-8dbb-528f80abc41b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_019d6da3-d14c-72bb-9688-ae90d990ea34" xlink:to="loc_dei_LegalEntityAxis_019d6da3-e567-7c5b-8dbb-528f80abc41b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6da3-e567-7c5b-8dbb-528f80abc41b_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6da3-e567-7c5b-8dbb-528f80abc41b" xlink:to="loc_dei_EntityDomain_019d6da3-e567-7c5b-8dbb-528f80abc41b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6da4-0b66-77e1-9eca-2f3ea49126d4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6da3-e567-7c5b-8dbb-528f80abc41b" xlink:to="loc_dei_EntityDomain_019d6da4-0b66-77e1-9eca-2f3ea49126d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d6da4-16cf-7993-b0cc-e81aa62f5e44" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6da4-0b66-77e1-9eca-2f3ea49126d4" xlink:to="loc_zions_EBP006Member_019d6da4-16cf-7993-b0cc-e81aa62f5e44" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019d6da4-65e7-7728-baba-9ee232170dfa" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019d6da4-4d13-7144-968b-0082ec065e56" xlink:to="loc_dei_DocumentType_019d6da4-65e7-7728-baba-9ee232170dfa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019d6da4-9cdc-7ee4-81c2-40bf4ad85f6a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019d6da4-4d13-7144-968b-0082ec065e56" xlink:to="loc_dei_EntityRegistrantName_019d6da4-9cdc-7ee4-81c2-40bf4ad85f6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e894e-35b3-7109-915d-ea192b55e024" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019d6da4-4d13-7144-968b-0082ec065e56" xlink:to="loc_dei_AmendmentFlag_019e894e-35b3-7109-915d-ea192b55e024" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e894e-4e24-7eff-a44f-6b07ecc46ea3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019d6da4-4d13-7144-968b-0082ec065e56" xlink:to="loc_dei_EntityCentralIndexKey_019e894e-4e24-7eff-a44f-6b07ecc46ea3" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/EmployeeBenefitPlanStatementofNetAssetAvailableforBenefitStatement" xlink:type="simple" xlink:href="zions-20260625.xsd#EmployeeBenefitPlanStatementofNetAssetAvailableforBenefitStatement"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/EmployeeBenefitPlanStatementofNetAssetAvailableforBenefitStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6db1-b344-7f2e-9f98-29257afb092f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable_019d6db0-e209-7fd5-893e-0a03b4bb3016" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6db1-b344-7f2e-9f98-29257afb092f" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable_019d6db0-e209-7fd5-893e-0a03b4bb3016" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6db1-07c5-7262-bf46-4cee14fb8413" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable_019d6db0-e209-7fd5-893e-0a03b4bb3016" xlink:to="loc_dei_LegalEntityAxis_019d6db1-07c5-7262-bf46-4cee14fb8413" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6db1-07c5-7262-bf46-4cee14fb8413_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6db1-07c5-7262-bf46-4cee14fb8413" xlink:to="loc_dei_EntityDomain_019d6db1-07c5-7262-bf46-4cee14fb8413_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6db1-2131-7a45-9029-d78ad393bf57" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6db1-07c5-7262-bf46-4cee14fb8413" xlink:to="loc_dei_EntityDomain_019d6db1-2131-7a45-9029-d78ad393bf57" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d6db1-33e5-7e26-9ee0-0070a3add89f" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6db1-2131-7a45-9029-d78ad393bf57" xlink:to="loc_zions_EBP006Member_019d6db1-33e5-7e26-9ee0-0070a3add89f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6db1-cc2a-7e36-a976-7ae343281fdb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6db1-b344-7f2e-9f98-29257afb092f" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6db1-cc2a-7e36-a976-7ae343281fdb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dbd-1225-71a1-8b81-9c3b0c988824" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6db1-b344-7f2e-9f98-29257afb092f" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dbd-1225-71a1-8b81-9c3b0c988824" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerAndParticipantContributionsReceivable_019d6db1-ef2d-73f3-adaa-10e185e2dc0a" xlink:href="zions-20260625.xsd#zions_EBPEmployerAndParticipantContributionsReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dbd-1225-71a1-8b81-9c3b0c988824" xlink:to="loc_zions_EBPEmployerAndParticipantContributionsReceivable_019d6db1-ef2d-73f3-adaa-10e185e2dc0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant_019d6db1-ea1d-7400-b834-8fdf4c6c2743" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dbd-1225-71a1-8b81-9c3b0c988824" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant_019d6db1-ea1d-7400-b834-8fdf4c6c2743" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanReceivable_019d6db1-e49d-7cdc-a641-d56fcd75d949" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dbd-1225-71a1-8b81-9c3b0c988824" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanReceivable_019d6db1-e49d-7cdc-a641-d56fcd75d949" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6db1-df3e-77a5-9406-eff5bdf2cf3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6db1-b344-7f2e-9f98-29257afb092f" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6db1-df3e-77a5-9406-eff5bdf2cf3a" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/EmployeeBenefitPlanStatementofChangeinNetAssetAvailableforBenefitStatement" xlink:type="simple" xlink:href="zions-20260625.xsd#EmployeeBenefitPlanStatementofChangeinNetAssetAvailableforBenefitStatement"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/EmployeeBenefitPlanStatementofChangeinNetAssetAvailableforBenefitStatement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dbc-baa2-701c-9f11-3483cbc5d6b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable_019d6dbb-e8e7-73b7-aea5-7ec87d99a530" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dbc-baa2-701c-9f11-3483cbc5d6b4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable_019d6dbb-e8e7-73b7-aea5-7ec87d99a530" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dbc-0771-7c47-891b-28f1f4106b2f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable_019d6dbb-e8e7-73b7-aea5-7ec87d99a530" xlink:to="loc_dei_LegalEntityAxis_019d6dbc-0771-7c47-891b-28f1f4106b2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dbc-0771-7c47-891b-28f1f4106b2f_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dbc-0771-7c47-891b-28f1f4106b2f" xlink:to="loc_dei_EntityDomain_019d6dbc-0771-7c47-891b-28f1f4106b2f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dbc-237b-7559-9449-d41175988b95" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dbc-0771-7c47-891b-28f1f4106b2f" xlink:to="loc_dei_EntityDomain_019d6dbc-237b-7559-9449-d41175988b95" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d6dbc-3214-7174-b58a-38ab355fbd6d" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dbc-237b-7559-9449-d41175988b95" xlink:to="loc_zions_EBP006Member_019d6dbc-3214-7174-b58a-38ab355fbd6d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_019d6dbf-5b8f-7595-9a67-55e05960cc84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dbc-baa2-701c-9f11-3483cbc5d6b4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_019d6dbf-5b8f-7595-9a67-55e05960cc84" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_019d6dbe-0c87-7868-ace0-61ef18505ce0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_019d6dbf-5b8f-7595-9a67-55e05960cc84" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_019d6dbe-0c87-7868-ace0-61ef18505ce0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment_019d6dbe-5f57-7596-bf8f-64d1c5c00815" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_019d6dbf-5b8f-7595-9a67-55e05960cc84" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment_019d6dbe-5f57-7596-bf8f-64d1c5c00815" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dbf-de4b-785e-b8f1-c3979b24ae63" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dbc-baa2-701c-9f11-3483cbc5d6b4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dbf-de4b-785e-b8f1-c3979b24ae63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover_019d6dbe-58e9-7a0d-8231-f58321164dcb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dbf-de4b-785e-b8f1-c3979b24ae63" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover_019d6dbe-58e9-7a0d-8231-f58321164dcb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash_019d6dbe-5300-7aa5-9130-397837716ad8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dbf-de4b-785e-b8f1-c3979b24ae63" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash_019d6dbe-5300-7aa5-9130-397837716ad8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionRollover_019d6dbe-4c1f-746f-8deb-c1667b201dcf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionRollover"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dbf-de4b-785e-b8f1-c3979b24ae63" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionRollover_019d6dbe-4c1f-746f-8deb-c1667b201dcf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease_019d6dbe-455b-73e3-9116-5b55cfcd109a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dbc-baa2-701c-9f11-3483cbc5d6b4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease_019d6dbe-455b-73e3-9116-5b55cfcd109a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant_019d6dbe-3f9e-77b9-b11f-95b492641406" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dbc-baa2-701c-9f11-3483cbc5d6b4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant_019d6dbe-3f9e-77b9-b11f-95b492641406" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease_019d6dbe-37ed-742b-947a-95e73116d12c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dbc-baa2-701c-9f11-3483cbc5d6b4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease_019d6dbe-37ed-742b-947a-95e73116d12c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract_019d6dc0-7ed6-794b-ab8d-dbc39c9cb641" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dbc-baa2-701c-9f11-3483cbc5d6b4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract_019d6dc0-7ed6-794b-ab8d-dbc39c9cb641" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6dbe-32d4-7238-9527-edf998408132" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract_019d6dc0-7ed6-794b-ab8d-dbc39c9cb641" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6dbe-32d4-7238-9527-edf998408132" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6dbe-2c26-73b2-bb3a-574d77ccc979" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/DESCRIPTIONOFPLAN" xlink:type="simple" xlink:href="zions-20260625.xsd#DESCRIPTIONOFPLAN"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/DESCRIPTIONOFPLAN" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dc5-8e64-767b-a464-b4b12955f26f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dc4-d15b-7f95-b30f-fa48cc99b18b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dc5-8e64-767b-a464-b4b12955f26f" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dc4-d15b-7f95-b30f-fa48cc99b18b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dc4-f8dd-77b8-a4de-5946153a60dd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dc4-d15b-7f95-b30f-fa48cc99b18b" xlink:to="loc_dei_LegalEntityAxis_019d6dc4-f8dd-77b8-a4de-5946153a60dd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dc4-f8dd-77b8-a4de-5946153a60dd_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dc4-f8dd-77b8-a4de-5946153a60dd" xlink:to="loc_dei_EntityDomain_019d6dc4-f8dd-77b8-a4de-5946153a60dd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dc5-1327-760c-b6bf-353fd28379ab" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dc4-f8dd-77b8-a4de-5946153a60dd" xlink:to="loc_dei_EntityDomain_019d6dc5-1327-760c-b6bf-353fd28379ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d6dc5-2ae1-7641-9a05-01d6118a3a00" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dc5-1327-760c-b6bf-353fd28379ab" xlink:to="loc_zions_EBP006Member_019d6dc5-2ae1-7641-9a05-01d6118a3a00" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock_019d6dc5-9ad5-7292-bb54-5b2801e3b47a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dc5-8e64-767b-a464-b4b12955f26f" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock_019d6dc5-9ad5-7292-bb54-5b2801e3b47a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/SIGNIFICANTACCOUNTINGPOLICIES" xlink:type="simple" xlink:href="zions-20260625.xsd#SIGNIFICANTACCOUNTINGPOLICIES"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/SIGNIFICANTACCOUNTINGPOLICIES" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df9-4333-7b98-8767-e3316bc96741" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df8-b941-7bff-be1d-c626f389de51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df9-4333-7b98-8767-e3316bc96741" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df8-b941-7bff-be1d-c626f389de51" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6df8-d750-73f4-af8c-b23e0dad6fd1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df8-b941-7bff-be1d-c626f389de51" xlink:to="loc_dei_LegalEntityAxis_019d6df8-d750-73f4-af8c-b23e0dad6fd1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6df8-d750-73f4-af8c-b23e0dad6fd1_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6df8-d750-73f4-af8c-b23e0dad6fd1" xlink:to="loc_dei_EntityDomain_019d6df8-d750-73f4-af8c-b23e0dad6fd1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6df8-f680-7927-9efd-727e5a1268bb" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6df8-d750-73f4-af8c-b23e0dad6fd1" xlink:to="loc_dei_EntityDomain_019d6df8-f680-7927-9efd-727e5a1268bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d6df9-0134-7fff-914f-a79fc2442206" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6df8-f680-7927-9efd-727e5a1268bb" xlink:to="loc_zions_EBP006Member_019d6df9-0134-7fff-914f-a79fc2442206" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock_019d6df9-4e31-767a-8c66-81209ba39ed5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df9-4333-7b98-8767-e3316bc96741" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock_019d6df9-4e31-767a-8c66-81209ba39ed5" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/INVESTMENTS" xlink:type="simple" xlink:href="zions-20260625.xsd#INVESTMENTS"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/INVESTMENTS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d6e09-9f35-7191-a859-9b7e66a0f6be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d6e09-1fe3-79e8-ba9f-f3272962b55f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d6e09-9f35-7191-a859-9b7e66a0f6be" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d6e09-1fe3-79e8-ba9f-f3272962b55f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6e09-2e3c-7e33-b9be-67762e80d836" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d6e09-1fe3-79e8-ba9f-f3272962b55f" xlink:to="loc_dei_LegalEntityAxis_019d6e09-2e3c-7e33-b9be-67762e80d836" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6e09-2e3c-7e33-b9be-67762e80d836_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6e09-2e3c-7e33-b9be-67762e80d836" xlink:to="loc_dei_EntityDomain_019d6e09-2e3c-7e33-b9be-67762e80d836_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6e09-54fc-7adf-95ff-d468641fe153" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6e09-2e3c-7e33-b9be-67762e80d836" xlink:to="loc_dei_EntityDomain_019d6e09-54fc-7adf-95ff-d468641fe153" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d6e09-6324-7881-8cb7-ebeac7839b38" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6e09-54fc-7adf-95ff-d468641fe153" xlink:to="loc_zions_EBP006Member_019d6e09-6324-7881-8cb7-ebeac7839b38" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPInvestmentTextBlock_019d6e09-afd2-79ce-af53-4e026908924c" xlink:href="zions-20260625.xsd#zions_EBPInvestmentTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d6e09-9f35-7191-a859-9b7e66a0f6be" xlink:to="loc_zions_EBPInvestmentTextBlock_019d6e09-afd2-79ce-af53-4e026908924c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/FAIRVALUE" xlink:type="simple" xlink:href="zions-20260625.xsd#FAIRVALUE"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/FAIRVALUE" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d7327-33be-713f-91c7-23b28092b065" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7326-52a5-7b5c-9f4a-12ebe0ea30bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d7327-33be-713f-91c7-23b28092b065" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7326-52a5-7b5c-9f4a-12ebe0ea30bc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d7326-7bb7-7190-aeee-8a9bf366dcf8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7326-52a5-7b5c-9f4a-12ebe0ea30bc" xlink:to="loc_dei_LegalEntityAxis_019d7326-7bb7-7190-aeee-8a9bf366dcf8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d7326-7bb7-7190-aeee-8a9bf366dcf8_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d7326-7bb7-7190-aeee-8a9bf366dcf8" xlink:to="loc_dei_EntityDomain_019d7326-7bb7-7190-aeee-8a9bf366dcf8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d7326-c106-7a42-a5c6-194c8692f1ca" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d7326-7bb7-7190-aeee-8a9bf366dcf8" xlink:to="loc_dei_EntityDomain_019d7326-c106-7a42-a5c6-194c8692f1ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d7326-d440-7cc7-ac4b-af679702ee16" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d7326-c106-7a42-a5c6-194c8692f1ca" xlink:to="loc_zions_EBP006Member_019d7326-d440-7cc7-ac4b-af679702ee16" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock_019d7327-43a6-7174-b49e-503ec68a8086" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d7327-33be-713f-91c7-23b28092b065" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock_019d7327-43a6-7174-b49e-503ec68a8086" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/TRANSACTIONSWITHPARTIESININTEREST" xlink:type="simple" xlink:href="zions-20260625.xsd#TRANSACTIONSWITHPARTIESININTEREST"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/TRANSACTIONSWITHPARTIESININTEREST" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d7398-e272-78fb-aad4-5799a925401b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d7398-18f7-74d6-a845-fc09f4e36e6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d7398-e272-78fb-aad4-5799a925401b" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d7398-18f7-74d6-a845-fc09f4e36e6a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d7398-3f85-7799-8665-71fde03dfea7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d7398-18f7-74d6-a845-fc09f4e36e6a" xlink:to="loc_dei_LegalEntityAxis_019d7398-3f85-7799-8665-71fde03dfea7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d7398-3f85-7799-8665-71fde03dfea7_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d7398-3f85-7799-8665-71fde03dfea7" xlink:to="loc_dei_EntityDomain_019d7398-3f85-7799-8665-71fde03dfea7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d7398-66df-78df-8046-989aa42e362f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d7398-3f85-7799-8665-71fde03dfea7" xlink:to="loc_dei_EntityDomain_019d7398-66df-78df-8046-989aa42e362f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d7398-7843-71f7-bb86-ec04dacf4b85" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d7398-66df-78df-8046-989aa42e362f" xlink:to="loc_zions_EBP006Member_019d7398-7843-71f7-bb86-ec04dacf4b85" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock_019d7399-22c7-7c5a-afa3-ffa1048089f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d7398-e272-78fb-aad4-5799a925401b" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock_019d7399-22c7-7c5a-afa3-ffa1048089f0" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/RISKSANDUNCERTAINTIES" xlink:type="simple" xlink:href="zions-20260625.xsd#RISKSANDUNCERTAINTIES"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/RISKSANDUNCERTAINTIES" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EbpRiskAndUncertaintyLineItems_019d73a0-130e-7d54-b39f-2b6713a079c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EbpRiskAndUncertaintyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EbpRiskAndUncertaintyTable_019d739f-6756-7274-89ea-c7863092c528" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EbpRiskAndUncertaintyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EbpRiskAndUncertaintyLineItems_019d73a0-130e-7d54-b39f-2b6713a079c1" xlink:to="loc_us-gaap-ebp_EbpRiskAndUncertaintyTable_019d739f-6756-7274-89ea-c7863092c528" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d739f-8543-75b3-ba7e-baef6c6bb1c7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EbpRiskAndUncertaintyTable_019d739f-6756-7274-89ea-c7863092c528" xlink:to="loc_dei_LegalEntityAxis_019d739f-8543-75b3-ba7e-baef6c6bb1c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d739f-8543-75b3-ba7e-baef6c6bb1c7_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d739f-8543-75b3-ba7e-baef6c6bb1c7" xlink:to="loc_dei_EntityDomain_019d739f-8543-75b3-ba7e-baef6c6bb1c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d739f-a8f8-779d-b321-7e9b064e0029" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d739f-8543-75b3-ba7e-baef6c6bb1c7" xlink:to="loc_dei_EntityDomain_019d739f-a8f8-779d-b321-7e9b064e0029" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d739f-b894-7cb9-aef7-25ded150efc7" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d739f-a8f8-779d-b321-7e9b064e0029" xlink:to="loc_zions_EBP006Member_019d739f-b894-7cb9-aef7-25ded150efc7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRiskAndUncertaintyTextBlock_019d73a0-2dd3-7dcd-a850-425bdcffcbbc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRiskAndUncertaintyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EbpRiskAndUncertaintyLineItems_019d73a0-130e-7d54-b39f-2b6713a079c1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRiskAndUncertaintyTextBlock_019d73a0-2dd3-7dcd-a850-425bdcffcbbc" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/INCOMETAXSTATUS" xlink:type="simple" xlink:href="zions-20260625.xsd#INCOMETAXSTATUS"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/INCOMETAXSTATUS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusLineItems_019d73a2-4243-74be-954b-f839ac9ead89" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanTaxStatusLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable_019d73a1-aa86-7860-b873-8a69b4f46f1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusLineItems_019d73a2-4243-74be-954b-f839ac9ead89" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable_019d73a1-aa86-7860-b873-8a69b4f46f1e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d73a1-d0e3-742c-b4a6-1151f260f5e3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable_019d73a1-aa86-7860-b873-8a69b4f46f1e" xlink:to="loc_dei_LegalEntityAxis_019d73a1-d0e3-742c-b4a6-1151f260f5e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d73a1-d0e3-742c-b4a6-1151f260f5e3_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d73a1-d0e3-742c-b4a6-1151f260f5e3" xlink:to="loc_dei_EntityDomain_019d73a1-d0e3-742c-b4a6-1151f260f5e3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d73a1-f3e0-7d5b-ab9e-540b1be0dccc" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d73a1-d0e3-742c-b4a6-1151f260f5e3" xlink:to="loc_dei_EntityDomain_019d73a1-f3e0-7d5b-ab9e-540b1be0dccc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d73a2-08ec-7fe1-b853-73b7e730bae3" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d73a1-f3e0-7d5b-ab9e-540b1be0dccc" xlink:to="loc_zions_EBP006Member_019d73a2-08ec-7fe1-b853-73b7e730bae3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTextBlock_019d73a2-4ce6-7115-8830-59d2a86a9867" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanTaxStatusTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusLineItems_019d73a2-4243-74be-954b-f839ac9ead89" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTextBlock_019d73a2-4ce6-7115-8830-59d2a86a9867" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/ScheduleHLine4iScheduleofAssetsHeldatEndofYear" xlink:type="simple" xlink:href="zions-20260625.xsd#ScheduleHLine4iScheduleofAssetsHeldatEndofYear"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/ScheduleHLine4iScheduleofAssetsHeldatEndofYear" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73d9-de96-78d5-ba7f-392f91520984" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73d9-3e63-7b09-826a-548683df358d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73d9-de96-78d5-ba7f-392f91520984" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73d9-3e63-7b09-826a-548683df358d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d73d9-6ccf-7167-b363-2696493d4b9e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73d9-3e63-7b09-826a-548683df358d" xlink:to="loc_dei_LegalEntityAxis_019d73d9-6ccf-7167-b363-2696493d4b9e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d73d9-6ccf-7167-b363-2696493d4b9e_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d73d9-6ccf-7167-b363-2696493d4b9e" xlink:to="loc_dei_EntityDomain_019d73d9-6ccf-7167-b363-2696493d4b9e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d73d9-96c3-7c1a-99b1-2a8698b78a4e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d73d9-6ccf-7167-b363-2696493d4b9e" xlink:to="loc_dei_EntityDomain_019d73d9-96c3-7c1a-99b1-2a8698b78a4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d73d9-a2ca-78ec-af69-004a53643268" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d73d9-96c3-7c1a-99b1-2a8698b78a4e" xlink:to="loc_zions_EBP006Member_019d73d9-a2ca-78ec-af69-004a53643268" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock_019d73da-1a24-7996-b31b-b15181e9a6a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73d9-de96-78d5-ba7f-392f91520984" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock_019d73da-1a24-7996-b31b-b15181e9a6a2" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/SIGNIFICANTACCOUNTINGPOLICIESPolicies" xlink:type="simple" xlink:href="zions-20260625.xsd#SIGNIFICANTACCOUNTINGPOLICIESPolicies"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/SIGNIFICANTACCOUNTINGPOLICIESPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dfa-4c44-70c0-8582-0c3ec6f5eba2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df9-c7b3-7c81-bd6a-b67a78e41cdb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dfa-4c44-70c0-8582-0c3ec6f5eba2" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df9-c7b3-7c81-bd6a-b67a78e41cdb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6df9-dc03-7ea5-af58-6218d9f96e59" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df9-c7b3-7c81-bd6a-b67a78e41cdb" xlink:to="loc_dei_LegalEntityAxis_019d6df9-dc03-7ea5-af58-6218d9f96e59" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6df9-dc03-7ea5-af58-6218d9f96e59_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6df9-dc03-7ea5-af58-6218d9f96e59" xlink:to="loc_dei_EntityDomain_019d6df9-dc03-7ea5-af58-6218d9f96e59_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6df9-fe5b-7a63-ac6b-6fd4cafe092f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6df9-dc03-7ea5-af58-6218d9f96e59" xlink:to="loc_dei_EntityDomain_019d6df9-fe5b-7a63-ac6b-6fd4cafe092f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d6dfa-08fd-7f2d-9b17-e7c6a344e304" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6df9-fe5b-7a63-ac6b-6fd4cafe092f" xlink:to="loc_zions_EBP006Member_019d6dfa-08fd-7f2d-9b17-e7c6a344e304" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock_019d6dfa-7df0-7e9f-a578-106ef7fd7b4e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dfa-4c44-70c0-8582-0c3ec6f5eba2" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock_019d6dfa-7df0-7e9f-a578-106ef7fd7b4e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock_019d6dfa-925b-7e34-8ae6-d7d0068588e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dfa-4c44-70c0-8582-0c3ec6f5eba2" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock_019d6dfa-925b-7e34-8ae6-d7d0068588e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock_019d6dfa-9e32-7d16-afe6-cab0fd420c90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dfa-4c44-70c0-8582-0c3ec6f5eba2" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock_019d6dfa-9e32-7d16-afe6-cab0fd420c90" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock_019d6dfa-ae34-7b6c-a191-9129c4c2083c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dfa-4c44-70c0-8582-0c3ec6f5eba2" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock_019d6dfa-ae34-7b6c-a191-9129c4c2083c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EbpRiskAndUncertaintyPolicyTextBlock_019d6dfa-bdb9-72c5-9ef9-607e59806751" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EbpRiskAndUncertaintyPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dfa-4c44-70c0-8582-0c3ec6f5eba2" xlink:to="loc_us-gaap-ebp_EbpRiskAndUncertaintyPolicyTextBlock_019d6dfa-bdb9-72c5-9ef9-607e59806751" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPRecentlyIssuedAccountingPronouncementsPolicyTextBlock_019ed1b8-ed74-7ec6-8572-ac8508005b94" xlink:href="zions-20260625.xsd#zions_EBPRecentlyIssuedAccountingPronouncementsPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dfa-4c44-70c0-8582-0c3ec6f5eba2" xlink:to="loc_zions_EBPRecentlyIssuedAccountingPronouncementsPolicyTextBlock_019ed1b8-ed74-7ec6-8572-ac8508005b94" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanSubsequentEventPolicyTextBlock_019d6dfa-d07f-78aa-8b0c-5752397c14bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanSubsequentEventPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dfa-4c44-70c0-8582-0c3ec6f5eba2" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanSubsequentEventPolicyTextBlock_019d6dfa-d07f-78aa-8b0c-5752397c14bb" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/DESCRIPTIONOFPLANTables" xlink:type="simple" xlink:href="zions-20260625.xsd#DESCRIPTIONOFPLANTables"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/DESCRIPTIONOFPLANTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d5-d122-738c-b0b7-0634574860f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d77d4-67d3-7e43-80c0-ce9f1d2dbd09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d5-d122-738c-b0b7-0634574860f7" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d77d4-67d3-7e43-80c0-ce9f1d2dbd09" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d77d5-5e70-7cc7-b25b-1151aaa14bcb" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d77d4-67d3-7e43-80c0-ce9f1d2dbd09" xlink:to="loc_dei_LegalEntityAxis_019d77d5-5e70-7cc7-b25b-1151aaa14bcb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d77d5-5e70-7cc7-b25b-1151aaa14bcb_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d77d5-5e70-7cc7-b25b-1151aaa14bcb" xlink:to="loc_dei_EntityDomain_019d77d5-5e70-7cc7-b25b-1151aaa14bcb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d77d5-8881-73a1-ad7d-b3f164fdaf12" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d77d5-5e70-7cc7-b25b-1151aaa14bcb" xlink:to="loc_dei_EntityDomain_019d77d5-8881-73a1-ad7d-b3f164fdaf12" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d77d5-950b-7443-aef4-8d144fee7723" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d77d5-8881-73a1-ad7d-b3f164fdaf12" xlink:to="loc_zions_EBP006Member_019d77d5-950b-7443-aef4-8d144fee7723" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPVestingScheduleTableTextBlock_019d77d5-fff4-733a-bb3c-a0a31cbaaf7d" xlink:href="zions-20260625.xsd#zions_EBPVestingScheduleTableTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d5-d122-738c-b0b7-0634574860f7" xlink:to="loc_zions_EBPVestingScheduleTableTextBlock_019d77d5-fff4-733a-bb3c-a0a31cbaaf7d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/INVESTMENTSTables" xlink:type="simple" xlink:href="zions-20260625.xsd#INVESTMENTSTables"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/INVESTMENTSTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d6e0a-f390-72f5-8836-418b7b4ae760" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d6e0a-4786-7bb5-9d0d-fd8aad02d3ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d6e0a-f390-72f5-8836-418b7b4ae760" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d6e0a-4786-7bb5-9d0d-fd8aad02d3ad" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6e0a-72f6-76be-97a0-f16c3715b430" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d6e0a-4786-7bb5-9d0d-fd8aad02d3ad" xlink:to="loc_dei_LegalEntityAxis_019d6e0a-72f6-76be-97a0-f16c3715b430" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6e0a-72f6-76be-97a0-f16c3715b430_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6e0a-72f6-76be-97a0-f16c3715b430" xlink:to="loc_dei_EntityDomain_019d6e0a-72f6-76be-97a0-f16c3715b430_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6e0a-97a9-7938-8a2e-36925aab049b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6e0a-72f6-76be-97a0-f16c3715b430" xlink:to="loc_dei_EntityDomain_019d6e0a-97a9-7938-8a2e-36925aab049b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d6e0a-ac17-75d4-9ed8-3d54a13cb725" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6e0a-97a9-7938-8a2e-36925aab049b" xlink:to="loc_zions_EBP006Member_019d6e0a-ac17-75d4-9ed8-3d54a13cb725" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPInvestmentTableTextBlock_019d6e0b-02a0-7c44-a24e-1bb396350f33" xlink:href="zions-20260625.xsd#zions_EBPInvestmentTableTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d6e0a-f390-72f5-8836-418b7b4ae760" xlink:to="loc_zions_EBPInvestmentTableTextBlock_019d6e0b-02a0-7c44-a24e-1bb396350f33" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/FAIRVALUETables" xlink:type="simple" xlink:href="zions-20260625.xsd#FAIRVALUETables"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/FAIRVALUETables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d732c-0abf-7633-942e-141e2d495fab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7329-f5ce-79da-91b7-87abc01ab9ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d732c-0abf-7633-942e-141e2d495fab" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7329-f5ce-79da-91b7-87abc01ab9ba" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d732a-1220-73cb-a149-63900f625ab7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7329-f5ce-79da-91b7-87abc01ab9ba" xlink:to="loc_dei_LegalEntityAxis_019d732a-1220-73cb-a149-63900f625ab7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d732a-1220-73cb-a149-63900f625ab7_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d732a-1220-73cb-a149-63900f625ab7" xlink:to="loc_dei_EntityDomain_019d732a-1220-73cb-a149-63900f625ab7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d732a-275d-7757-a365-f15140825b4a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d732a-1220-73cb-a149-63900f625ab7" xlink:to="loc_dei_EntityDomain_019d732a-275d-7757-a365-f15140825b4a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d732a-34e6-7cce-aad5-cfcd7315c30f" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d732a-275d-7757-a365-f15140825b4a" xlink:to="loc_zions_EBP006Member_019d732a-34e6-7cce-aad5-cfcd7315c30f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock_019d732c-239c-7bcc-b517-072803ed34c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d732c-0abf-7633-942e-141e2d495fab" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock_019d732c-239c-7bcc-b517-072803ed34c7" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/DESCRIPTIONOFPLANNarrativeDetails" xlink:type="simple" xlink:href="zions-20260625.xsd#DESCRIPTIONOFPLANNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/DESCRIPTIONOFPLANNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d77d6-42b9-7429-b6ac-627d12cf969b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d77d6-42b9-7429-b6ac-627d12cf969b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d77d6-6419-7985-9ada-2a7a33af0f94" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d77d6-42b9-7429-b6ac-627d12cf969b" xlink:to="loc_dei_LegalEntityAxis_019d77d6-6419-7985-9ada-2a7a33af0f94" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d77d6-6419-7985-9ada-2a7a33af0f94_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d77d6-6419-7985-9ada-2a7a33af0f94" xlink:to="loc_dei_EntityDomain_019d77d6-6419-7985-9ada-2a7a33af0f94_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d77d6-8835-709e-9675-5f6452ab5157" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d77d6-6419-7985-9ada-2a7a33af0f94" xlink:to="loc_dei_EntityDomain_019d77d6-8835-709e-9675-5f6452ab5157" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d77d6-997f-79c3-bd91-fda81a26e74c" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d77d6-8835-709e-9675-5f6452ab5157" xlink:to="loc_zions_EBP006Member_019d77d6-997f-79c3-bd91-fda81a26e74c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019d77d6-d5a6-7da5-9df5-d6c5f399be0c" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d77d6-42b9-7429-b6ac-627d12cf969b" xlink:to="loc_srt_RangeAxis_019d77d6-d5a6-7da5-9df5-d6c5f399be0c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d77d6-d5a6-7da5-9df5-d6c5f399be0c_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019d77d6-d5a6-7da5-9df5-d6c5f399be0c" xlink:to="loc_srt_RangeMember_019d77d6-d5a6-7da5-9df5-d6c5f399be0c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d77d7-0956-740b-8127-fd5b9fcfc875" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019d77d6-d5a6-7da5-9df5-d6c5f399be0c" xlink:to="loc_srt_RangeMember_019d77d7-0956-740b-8127-fd5b9fcfc875" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019d77d7-1843-7112-9308-f6def06f2a2e" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d77d7-0956-740b-8127-fd5b9fcfc875" xlink:to="loc_srt_MinimumMember_019d77d7-1843-7112-9308-f6def06f2a2e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019d77d7-2da4-73c0-a7d6-2e80c9b87e22" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d77d7-0956-740b-8127-fd5b9fcfc875" xlink:to="loc_srt_MaximumMember_019d77d7-2da4-73c0-a7d6-2e80c9b87e22" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019e895e-1cb5-7c10-95ea-54eea19b8863" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d77d6-42b9-7429-b6ac-627d12cf969b" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019e895e-1cb5-7c10-95ea-54eea19b8863" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019e895e-1cb5-7c10-95ea-54eea19b8863_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019e895e-1cb5-7c10-95ea-54eea19b8863" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019e895e-1cb5-7c10-95ea-54eea19b8863_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019e895e-1cb5-70b0-91d3-e0938fa79471" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019e895e-1cb5-7c10-95ea-54eea19b8863" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019e895e-1cb5-70b0-91d3-e0938fa79471" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019e895e-4602-7730-be09-4f08ff8356ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019e895e-1cb5-70b0-91d3-e0938fa79471" xlink:to="loc_us-gaap_SubsequentEventMember_019e895e-4602-7730-be09-4f08ff8356ff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionMatchingTrancheAxis_019ed1ae-fb1c-7239-b866-076caa4cc2fb" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionMatchingTrancheAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d77d6-42b9-7429-b6ac-627d12cf969b" xlink:to="loc_zions_EBPEmployerContributionMatchingTrancheAxis_019ed1ae-fb1c-7239-b866-076caa4cc2fb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionMatchingTrancheDomain_019ed1ae-fb1c-7239-b866-076caa4cc2fb_default" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionMatchingTrancheDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_zions_EBPEmployerContributionMatchingTrancheAxis_019ed1ae-fb1c-7239-b866-076caa4cc2fb" xlink:to="loc_zions_EBPEmployerContributionMatchingTrancheDomain_019ed1ae-fb1c-7239-b866-076caa4cc2fb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionMatchingTrancheDomain_019ed1ae-fb1c-783e-9c59-dac6d4445b8e" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionMatchingTrancheDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_zions_EBPEmployerContributionMatchingTrancheAxis_019ed1ae-fb1c-7239-b866-076caa4cc2fb" xlink:to="loc_zions_EBPEmployerContributionMatchingTrancheDomain_019ed1ae-fb1c-783e-9c59-dac6d4445b8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionMatchingTrancheOneMember_019ed1af-2ede-7daf-bf27-f3fef7bdc2b5" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionMatchingTrancheOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_zions_EBPEmployerContributionMatchingTrancheDomain_019ed1ae-fb1c-783e-9c59-dac6d4445b8e" xlink:to="loc_zions_EBPEmployerContributionMatchingTrancheOneMember_019ed1af-2ede-7daf-bf27-f3fef7bdc2b5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionMatchingTrancheTwoMember_019ed1af-5a25-76a8-b50c-b80752f2f264" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionMatchingTrancheTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_zions_EBPEmployerContributionMatchingTrancheDomain_019ed1ae-fb1c-783e-9c59-dac6d4445b8e" xlink:to="loc_zions_EBPEmployerContributionMatchingTrancheTwoMember_019ed1af-5a25-76a8-b50c-b80752f2f264" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPMinimumAgeToBeEligibleToParticipate_019ed1b3-fa48-7df0-b521-862194fd8437" xlink:href="zions-20260625.xsd#zions_EBPMinimumAgeToBeEligibleToParticipate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPMinimumAgeToBeEligibleToParticipate_019ed1b3-fa48-7df0-b521-862194fd8437" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPRequisiteServicePeriodHoursOfService_019ed1b1-7f79-7de8-a8ca-9a87dd51566b" xlink:href="zions-20260625.xsd#zions_EBPRequisiteServicePeriodHoursOfService"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPRequisiteServicePeriodHoursOfService_019ed1b1-7f79-7de8-a8ca-9a87dd51566b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPRequisiteServicePeriod_019d77d7-c3a1-7e89-a348-c14475e2dba4" xlink:href="zions-20260625.xsd#zions_EBPRequisiteServicePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPRequisiteServicePeriod_019d77d7-c3a1-7e89-a348-c14475e2dba4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage_019d77d8-088f-74e2-aaa4-95fbcaf97063" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage_019d77d8-088f-74e2-aaa4-95fbcaf97063" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerContributionMatchingPercentage_019ed1ad-5104-78ad-8777-240eb2ae5f29" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerContributionMatchingPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerContributionMatchingPercentage_019ed1ad-5104-78ad-8777-240eb2ae5f29" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage_019ed1ad-f6e8-7d4b-ae3a-f7db0b6ad4ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage_019ed1ad-f6e8-7d4b-ae3a-f7db0b6ad4ca" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionNoncontributoryProfitSharingPercentageOfCompensation_019d77d8-a2ed-755f-96a0-57aa8576032e" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionNoncontributoryProfitSharingPercentageOfCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPEmployerContributionNoncontributoryProfitSharingPercentageOfCompensation_019d77d8-a2ed-755f-96a0-57aa8576032e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution_019e895d-6ae3-79f8-9ac0-e9e3d3f2d911" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution_019e895d-6ae3-79f8-9ac0-e9e3d3f2d911" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution_019e895e-a517-76ec-b333-bbc0be7d743a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution_019e895e-a517-76ec-b333-bbc0be7d743a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash_019e8960-0a6d-73fc-acdc-896c558da30a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash_019e8960-0a6d-73fc-acdc-896c558da30a" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense_019d77d8-c87b-78b2-a69d-db142e5af4f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense_019d77d8-c87b-78b2-a69d-db142e5af4f8" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPPercentVestedAtNormalRetirementAge_019ed1b7-ba96-7e32-a34f-3c2f099a9b51" xlink:href="zions-20260625.xsd#zions_EBPPercentVestedAtNormalRetirementAge"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPPercentVestedAtNormalRetirementAge_019ed1b7-ba96-7e32-a34f-3c2f099a9b51" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPPercentageOfPlanInvestmentsAbleToBeDiversified_019e8967-81a5-7aa3-bb3c-6058f7d66fce" xlink:href="zions-20260625.xsd#zions_EBPPercentageOfPlanInvestmentsAbleToBeDiversified"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPPercentageOfPlanInvestmentsAbleToBeDiversified_019e8967-81a5-7aa3-bb3c-6058f7d66fce" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPParticipationPeriodBeforePlanInvestmentsAbleToBeDiversified_019e8968-e087-7139-85c7-1ea9ad09a793" xlink:href="zions-20260625.xsd#zions_EBPParticipationPeriodBeforePlanInvestmentsAbleToBeDiversified"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPParticipationPeriodBeforePlanInvestmentsAbleToBeDiversified_019e8968-e087-7139-85c7-1ea9ad09a793" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount_019d77da-eebc-7788-8133-b4ff38e9a7e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount_019d77da-eebc-7788-8133-b4ff38e9a7e8" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount_019d77da-e51f-7baf-a6c7-51e8ddcf4fa6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount_019d77da-e51f-7baf-a6c7-51e8ddcf4fa6" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage_019d77da-df88-7135-9ff6-9fa76b5d04c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage_019d77da-df88-7135-9ff6-9fa76b5d04c6" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPNoteReceivableFromParticipantGeneralLoanMaximumBorrowingTerm_019ef542-168c-717c-b9d9-f04d26658cdc" xlink:href="zions-20260625.xsd#zions_EBPNoteReceivableFromParticipantGeneralLoanMaximumBorrowingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPNoteReceivableFromParticipantGeneralLoanMaximumBorrowingTerm_019ef542-168c-717c-b9d9-f04d26658cdc" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPNoteReceivableFromParticipantPrimaryResidenceLoanMaximumBorrowingTerm_019ef542-a362-71ce-b475-9a574c4e253d" xlink:href="zions-20260625.xsd#zions_EBPNoteReceivableFromParticipantPrimaryResidenceLoanMaximumBorrowingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPNoteReceivableFromParticipantPrimaryResidenceLoanMaximumBorrowingTerm_019ef542-a362-71ce-b475-9a574c4e253d" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPMinimumPeriodOfEmploymentEarlierEligibilityForSafeHarborMatchingContributions_019ef545-d28d-7dbd-9bf4-fc4dd75885aa" xlink:href="zions-20260625.xsd#zions_EBPMinimumPeriodOfEmploymentEarlierEligibilityForSafeHarborMatchingContributions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPMinimumPeriodOfEmploymentEarlierEligibilityForSafeHarborMatchingContributions_019ef545-d28d-7dbd-9bf4-fc4dd75885aa" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPSuspenseAccountForExcessPensionFundingRatableUsePeriod_019ef546-df7c-7760-ace3-9f1c1c26b258" xlink:href="zions-20260625.xsd#zions_EBPSuspenseAccountForExcessPensionFundingRatableUsePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d77d7-8ebc-74a8-a088-12a7db6ede7d" xlink:to="loc_zions_EBPSuspenseAccountForExcessPensionFundingRatableUsePeriod_019ef546-df7c-7760-ace3-9f1c1c26b258" xlink:type="arc" order="20"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/DESCRIPTIONOFPLANVestingScheduleDetails" xlink:type="simple" xlink:href="zions-20260625.xsd#DESCRIPTIONOFPLANVestingScheduleDetails"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/DESCRIPTIONOFPLANVestingScheduleDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019e8963-2cea-73a1-8a21-e808e2bb9c12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019e8963-2cea-768c-a7bd-d18c2380a917" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019e8963-2cea-73a1-8a21-e808e2bb9c12" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019e8963-2cea-768c-a7bd-d18c2380a917" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019e8963-2cea-7840-aabb-951c9cece51d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019e8963-2cea-768c-a7bd-d18c2380a917" xlink:to="loc_dei_LegalEntityAxis_019e8963-2cea-7840-aabb-951c9cece51d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019e8963-2cea-7840-aabb-951c9cece51d_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019e8963-2cea-7840-aabb-951c9cece51d" xlink:to="loc_dei_EntityDomain_019e8963-2cea-7840-aabb-951c9cece51d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019e8963-2cea-773c-a707-5886588266d2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019e8963-2cea-7840-aabb-951c9cece51d" xlink:to="loc_dei_EntityDomain_019e8963-2cea-773c-a707-5886588266d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019e8963-2cea-7806-b538-ea973422035c" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019e8963-2cea-773c-a707-5886588266d2" xlink:to="loc_zions_EBP006Member_019e8963-2cea-7806-b538-ea973422035c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_VestingScheduleByYearsOfServiceAbstract_019e8964-7685-7ee1-bdbe-ef4cf49290f9" xlink:href="zions-20260625.xsd#zions_VestingScheduleByYearsOfServiceAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019e8963-2cea-73a1-8a21-e808e2bb9c12" xlink:to="loc_zions_VestingScheduleByYearsOfServiceAbstract_019e8964-7685-7ee1-bdbe-ef4cf49290f9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionVestingPercentageLessThan2YearsOfVestingServices_019e8963-2cea-79fe-be9a-aff4c3ab619b" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionVestingPercentageLessThan2YearsOfVestingServices"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_zions_VestingScheduleByYearsOfServiceAbstract_019e8964-7685-7ee1-bdbe-ef4cf49290f9" xlink:to="loc_zions_EBPEmployerContributionVestingPercentageLessThan2YearsOfVestingServices_019e8963-2cea-79fe-be9a-aff4c3ab619b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionVestingPercentage2YearsOfVestingServices_019e8963-2cea-7eaa-9d15-62577fc2d5d9" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionVestingPercentage2YearsOfVestingServices"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_zions_VestingScheduleByYearsOfServiceAbstract_019e8964-7685-7ee1-bdbe-ef4cf49290f9" xlink:to="loc_zions_EBPEmployerContributionVestingPercentage2YearsOfVestingServices_019e8963-2cea-7eaa-9d15-62577fc2d5d9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionVestingPercentage3YearsOfVestingServices_019e8963-2cea-7321-801b-eec03f4317ad" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionVestingPercentage3YearsOfVestingServices"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_zions_VestingScheduleByYearsOfServiceAbstract_019e8964-7685-7ee1-bdbe-ef4cf49290f9" xlink:to="loc_zions_EBPEmployerContributionVestingPercentage3YearsOfVestingServices_019e8963-2cea-7321-801b-eec03f4317ad" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionVestingPercentage4YearsOfVestingServices_019e8963-2cea-7f36-9fa9-6b279b745332" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionVestingPercentage4YearsOfVestingServices"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_zions_VestingScheduleByYearsOfServiceAbstract_019e8964-7685-7ee1-bdbe-ef4cf49290f9" xlink:to="loc_zions_EBPEmployerContributionVestingPercentage4YearsOfVestingServices_019e8963-2cea-7f36-9fa9-6b279b745332" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPEmployerContributionVestingPercentage5OrMoreYearsOfVestingServices_019e8963-2cea-7da8-9b70-5cee302f273c" xlink:href="zions-20260625.xsd#zions_EBPEmployerContributionVestingPercentage5OrMoreYearsOfVestingServices"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_zions_VestingScheduleByYearsOfServiceAbstract_019e8964-7685-7ee1-bdbe-ef4cf49290f9" xlink:to="loc_zions_EBPEmployerContributionVestingPercentage5OrMoreYearsOfVestingServices_019e8963-2cea-7da8-9b70-5cee302f273c" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/SIGNIFICANTACCOUNTINGPOLICIESDetails" xlink:type="simple" xlink:href="zions-20260625.xsd#SIGNIFICANTACCOUNTINGPOLICIESDetails"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/SIGNIFICANTACCOUNTINGPOLICIESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df7-8c7c-7c99-a05e-639af6d0565b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df6-2b84-75b6-82da-2492677a2664" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df7-8c7c-7c99-a05e-639af6d0565b" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df6-2b84-75b6-82da-2492677a2664" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6df6-52e7-78d4-8f78-0e61641c0692" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df6-2b84-75b6-82da-2492677a2664" xlink:to="loc_dei_LegalEntityAxis_019d6df6-52e7-78d4-8f78-0e61641c0692" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6df6-52e7-78d4-8f78-0e61641c0692_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6df6-52e7-78d4-8f78-0e61641c0692" xlink:to="loc_dei_EntityDomain_019d6df6-52e7-78d4-8f78-0e61641c0692_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6df6-77a5-7460-890d-f9d25467963f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6df6-52e7-78d4-8f78-0e61641c0692" xlink:to="loc_dei_EntityDomain_019d6df6-77a5-7460-890d-f9d25467963f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d6df6-8442-7a93-abf5-b1b16c981c2e" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6df6-77a5-7460-890d-f9d25467963f" xlink:to="loc_zions_EBP006Member_019d6df6-8442-7a93-abf5-b1b16c981c2e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d6df6-a641-75c6-8aae-857baf5809b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6df6-2b84-75b6-82da-2492677a2664" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d6df6-a641-75c6-8aae-857baf5809b7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6df6-a641-75c6-8aae-857baf5809b7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6df6-a641-75c6-8aae-857baf5809b7" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6df6-a641-75c6-8aae-857baf5809b7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6df6-d4f6-78e7-b832-b1b6ae2a8198" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6df6-a641-75c6-8aae-857baf5809b7" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6df6-d4f6-78e7-b832-b1b6ae2a8198" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_019d6df6-e5a6-7d11-8511-b3ecbf16cbcb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6df6-d4f6-78e7-b832-b1b6ae2a8198" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_019d6df6-e5a6-7d11-8511-b3ecbf16cbcb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant_019ed1bc-96d9-705f-aded-c674bd5c6746" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df7-8c7c-7c99-a05e-639af6d0565b" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant_019ed1bc-96d9-705f-aded-c674bd5c6746" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAllowanceForCreditLoss_019d6df8-0df0-797b-86ec-a99a1c687bae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df7-8c7c-7c99-a05e-639af6d0565b" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAllowanceForCreditLoss_019d6df8-0df0-797b-86ec-a99a1c687bae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6df8-089d-79e7-aa1c-1ffb862c7ae0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df7-8c7c-7c99-a05e-639af6d0565b" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6df8-089d-79e7-aa1c-1ffb862c7ae0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_019d6df8-027f-78ed-b2e6-c8b2b743c270" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df7-8c7c-7c99-a05e-639af6d0565b" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_019d6df8-027f-78ed-b2e6-c8b2b743c270" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPRiskAndUncertaintyEmployerCommonStockInvestmentsPercentageOfOwnership_019ed1ba-cfe6-75ec-9e16-5ec0194e2078" xlink:href="zions-20260625.xsd#zions_EBPRiskAndUncertaintyEmployerCommonStockInvestmentsPercentageOfOwnership"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6df7-8c7c-7c99-a05e-639af6d0565b" xlink:to="loc_zions_EBPRiskAndUncertaintyEmployerCommonStockInvestmentsPercentageOfOwnership_019ed1ba-cfe6-75ec-9e16-5ec0194e2078" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/INVESTMENTSDetails" xlink:type="simple" xlink:href="zions-20260625.xsd#INVESTMENTSDetails"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/INVESTMENTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d7317-1b04-74b9-af3a-134a2ce6e54f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d7317-1b04-74b9-af3a-134a2ce6e54f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d7317-3153-7b0b-b183-26c354ba39f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d7317-1b04-74b9-af3a-134a2ce6e54f" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d7317-3153-7b0b-b183-26c354ba39f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d7317-3153-7b0b-b183-26c354ba39f7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d7317-3153-7b0b-b183-26c354ba39f7" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d7317-3153-7b0b-b183-26c354ba39f7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d7317-5b3f-76c5-9aab-507bb50167a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d7317-3153-7b0b-b183-26c354ba39f7" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d7317-5b3f-76c5-9aab-507bb50167a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_019d7317-7130-777c-a497-d2632f92b63b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d7317-5b3f-76c5-9aab-507bb50167a5" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_019d7317-7130-777c-a497-d2632f92b63b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d7317-bb7a-74b7-bd65-1f216552eb62" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentTable_019d7317-1b04-74b9-af3a-134a2ce6e54f" xlink:to="loc_dei_LegalEntityAxis_019d7317-bb7a-74b7-bd65-1f216552eb62" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d7317-bb7a-74b7-bd65-1f216552eb62_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d7317-bb7a-74b7-bd65-1f216552eb62" xlink:to="loc_dei_EntityDomain_019d7317-bb7a-74b7-bd65-1f216552eb62_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d7317-d87b-790f-9233-59338d44c4b7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d7317-bb7a-74b7-bd65-1f216552eb62" xlink:to="loc_dei_EntityDomain_019d7317-d87b-790f-9233-59338d44c4b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d7317-ea6b-7f9a-bd06-7274d83cf10f" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d7317-d87b-790f-9233-59338d44c4b7" xlink:to="loc_zions_EBP006Member_019d7317-ea6b-7f9a-bd06-7274d83cf10f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_019d7318-a318-7547-b3f1-fd8c98af2b78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_019d7318-a318-7547-b3f1-fd8c98af2b78" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment_019d77f0-8048-7c10-a8f5-f930cdf0032c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment_019d77f0-8048-7c10-a8f5-f930cdf0032c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnInvestment_019d77f0-7a67-741d-9adf-e973353397b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnInvestment_019d77f0-7a67-741d-9adf-e973353397b6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution_019d7319-215a-7d84-b123-b48dfb80fb0f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution_019d7319-215a-7d84-b123-b48dfb80fb0f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitTransferToFromExternalPlan_019d731e-03d2-7a76-a194-0d81af53450d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitTransferToFromExternalPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitTransferToFromExternalPlan_019d731e-03d2-7a76-a194-0d81af53450d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant_019d731e-33ff-710c-a690-46d26a2722d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant_019d731e-33ff-710c-a690-46d26a2722d4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease_019d731e-a7c9-7a42-b113-218823a55a96" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease_019d731e-a7c9-7a42-b113-218823a55a96" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d731e-dd94-7ede-a1d4-86e186da647a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNonparticipantDirectedInvestmentLineItems_019d7318-2304-74eb-a1a0-d5188bfd44e4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d731e-dd94-7ede-a1d4-86e186da647a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d731e-f1a0-7f35-8934-09b1074f2035" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/FAIRVALUEDetails" xlink:type="simple" xlink:href="zions-20260625.xsd#FAIRVALUEDetails"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/FAIRVALUEDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d7383-c2f6-72e7-8d25-3f2c08e8a483" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7380-ee42-7c49-a649-3d2e608aaf35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d7383-c2f6-72e7-8d25-3f2c08e8a483" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7380-ee42-7c49-a649-3d2e608aaf35" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d7381-1994-7328-8a15-15813abec351" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7380-ee42-7c49-a649-3d2e608aaf35" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d7381-1994-7328-8a15-15813abec351" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d7381-1994-7328-8a15-15813abec351_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d7381-1994-7328-8a15-15813abec351" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d7381-1994-7328-8a15-15813abec351_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d7381-67c2-715c-9869-d5f4dee83f60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d7381-1994-7328-8a15-15813abec351" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d7381-67c2-715c-9869-d5f4dee83f60" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel12And3Member_019d7381-b529-75d7-bad7-f5998c2d9546" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel12And3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d7381-67c2-715c-9869-d5f4dee83f60" xlink:to="loc_us-gaap_FairValueInputsLevel12And3Member_019d7381-b529-75d7-bad7-f5998c2d9546" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019d7381-7a6d-70da-9c20-4c09cf44d826" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsLevel12And3Member_019d7381-b529-75d7-bad7-f5998c2d9546" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019d7381-7a6d-70da-9c20-4c09cf44d826" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019d7381-9222-76db-a0d1-7f31c71edd91" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsLevel12And3Member_019d7381-b529-75d7-bad7-f5998c2d9546" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019d7381-9222-76db-a0d1-7f31c71edd91" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019d7381-a6ae-76ea-86cf-69db5adec879" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsLevel12And3Member_019d7381-b529-75d7-bad7-f5998c2d9546" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019d7381-a6ae-76ea-86cf-69db5adec879" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_019d7381-c2bf-7093-92ad-cf14a0be5a6f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d7381-67c2-715c-9869-d5f4dee83f60" xlink:to="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_019d7381-c2bf-7093-92ad-cf14a0be5a6f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d7382-5e33-7490-aa2b-b07ef11b9461" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7380-ee42-7c49-a649-3d2e608aaf35" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d7382-5e33-7490-aa2b-b07ef11b9461" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d7382-5e33-7490-aa2b-b07ef11b9461_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d7382-5e33-7490-aa2b-b07ef11b9461" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d7382-5e33-7490-aa2b-b07ef11b9461_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d7382-876a-7fe5-8618-57fe740068ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d7382-5e33-7490-aa2b-b07ef11b9461" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d7382-876a-7fe5-8618-57fe740068ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_019d7382-9bd7-7c93-94dd-07a8d3c166ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d7382-876a-7fe5-8618-57fe740068ef" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_019d7382-9bd7-7c93-94dd-07a8d3c166ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_RegisteredInvestmentCompaniesMember_019ed1be-09af-7da7-b6c8-fa9f2befac9c" xlink:href="zions-20260625.xsd#zions_RegisteredInvestmentCompaniesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d7382-876a-7fe5-8618-57fe740068ef" xlink:to="loc_zions_RegisteredInvestmentCompaniesMember_019ed1be-09af-7da7-b6c8-fa9f2befac9c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d7382-c8ea-79c3-8651-b2d7c90a9bdc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d7382-876a-7fe5-8618-57fe740068ef" xlink:to="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d7382-c8ea-79c3-8651-b2d7c90a9bdc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d7382-ecc7-7946-bb8a-758b2788ce30" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d7380-ee42-7c49-a649-3d2e608aaf35" xlink:to="loc_dei_LegalEntityAxis_019d7382-ecc7-7946-bb8a-758b2788ce30" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d7382-ecc7-7946-bb8a-758b2788ce30_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d7382-ecc7-7946-bb8a-758b2788ce30" xlink:to="loc_dei_EntityDomain_019d7382-ecc7-7946-bb8a-758b2788ce30_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d7383-0927-7840-82cb-cbc6902a675e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d7382-ecc7-7946-bb8a-758b2788ce30" xlink:to="loc_dei_EntityDomain_019d7383-0927-7840-82cb-cbc6902a675e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d7383-16d9-7ce6-a239-cb271db90bea" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d7383-0927-7840-82cb-cbc6902a675e" xlink:to="loc_zions_EBP006Member_019d7383-16d9-7ce6-a239-cb271db90bea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d7383-fef1-76d0-9e53-ef5719222d13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d7383-c2f6-72e7-8d25-3f2c08e8a483" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d7383-fef1-76d0-9e53-ef5719222d13" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EbpFairValueInvestmentNavUnfundedCommitment_019e8986-c9e7-7957-a04c-11460b9f277a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EbpFairValueInvestmentNavUnfundedCommitment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d7383-c2f6-72e7-8d25-3f2c08e8a483" xlink:to="loc_us-gaap-ebp_EbpFairValueInvestmentNavUnfundedCommitment_019e8986-c9e7-7957-a04c-11460b9f277a" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/TRANSACTIONSWITHPARTIESININTERESTDetails" xlink:type="simple" xlink:href="zions-20260625.xsd#TRANSACTIONSWITHPARTIESININTERESTDetails"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/TRANSACTIONSWITHPARTIESININTERESTDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d77e3-91df-76fd-8442-1f7e3b8dab34" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d7399-f90c-7c9a-9bfc-2ad17ae75364" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d77e3-91df-76fd-8442-1f7e3b8dab34" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d7399-f90c-7c9a-9bfc-2ad17ae75364" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d739a-2474-70cb-b7e3-eb082bb3237b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d7399-f90c-7c9a-9bfc-2ad17ae75364" xlink:to="loc_dei_LegalEntityAxis_019d739a-2474-70cb-b7e3-eb082bb3237b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d739a-2474-70cb-b7e3-eb082bb3237b_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d739a-2474-70cb-b7e3-eb082bb3237b" xlink:to="loc_dei_EntityDomain_019d739a-2474-70cb-b7e3-eb082bb3237b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d739a-3d02-75b6-945d-0f7e0d3f0326" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d739a-2474-70cb-b7e3-eb082bb3237b" xlink:to="loc_dei_EntityDomain_019d739a-3d02-75b6-945d-0f7e0d3f0326" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d739a-5546-7cd1-b147-c516c533f923" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d739a-3d02-75b6-945d-0f7e0d3f0326" xlink:to="loc_zions_EBP006Member_019d739a-5546-7cd1-b147-c516c533f923" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d739a-7fa7-7e18-b368-80f2df92cd02" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d7399-f90c-7c9a-9bfc-2ad17ae75364" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d739a-7fa7-7e18-b368-80f2df92cd02" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d739a-7fa7-7e18-b368-80f2df92cd02_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d739a-7fa7-7e18-b368-80f2df92cd02" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d739a-7fa7-7e18-b368-80f2df92cd02_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d739a-a8cd-7406-96ca-dc56c4a0b241" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d739a-7fa7-7e18-b368-80f2df92cd02" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d739a-a8cd-7406-96ca-dc56c4a0b241" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_019d739a-bb0b-72b7-b2ea-754a0722a1e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d739a-a8cd-7406-96ca-dc56c4a0b241" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_019d739a-bb0b-72b7-b2ea-754a0722a1e9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019d739a-f524-7fb1-8c86-274d87f4e41d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d7399-f90c-7c9a-9bfc-2ad17ae75364" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019d739a-f524-7fb1-8c86-274d87f4e41d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019d739a-f524-7fb1-8c86-274d87f4e41d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019d739a-f524-7fb1-8c86-274d87f4e41d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019d739a-f524-7fb1-8c86-274d87f4e41d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019d739b-1908-7095-90cc-ed58c4968cc8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019d739a-f524-7fb1-8c86-274d87f4e41d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019d739b-1908-7095-90cc-ed58c4968cc8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanOtherRelatedPartyAndPartyInInterestMember_019d739b-2ff3-7596-a003-710e54499c5b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanOtherRelatedPartyAndPartyInInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019d739b-1908-7095-90cc-ed58c4968cc8" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanOtherRelatedPartyAndPartyInInterestMember_019d739b-2ff3-7596-a003-710e54499c5b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment_019d77ef-f018-7ede-a00d-74df9496b0c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d77e3-91df-76fd-8442-1f7e3b8dab34" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment_019d77ef-f018-7ede-a00d-74df9496b0c0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost_019d77e3-b7a2-7e80-90a7-d942ffcd13c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d77e3-91df-76fd-8442-1f7e3b8dab34" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost_019d77e3-b7a2-7e80-90a7-d942ffcd13c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentSoldExcludingPlanInterestInMasterTrustSellingPrice_019d77e3-f3e2-757f-bb08-1baa23c55e80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentSoldExcludingPlanInterestInMasterTrustSellingPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d77e3-91df-76fd-8442-1f7e3b8dab34" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentSoldExcludingPlanInterestInMasterTrustSellingPrice_019d77e3-f3e2-757f-bb08-1baa23c55e80" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBPInvestmentAcquiredExcludingPlanInterestInMasterTrustCostExchangesMadeByOtherParticipants_019d77e3-edc6-778f-939b-5694a4c5dea8" xlink:href="zions-20260625.xsd#zions_EBPInvestmentAcquiredExcludingPlanInterestInMasterTrustCostExchangesMadeByOtherParticipants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d77e3-91df-76fd-8442-1f7e3b8dab34" xlink:to="loc_zions_EBPInvestmentAcquiredExcludingPlanInterestInMasterTrustCostExchangesMadeByOtherParticipants_019d77e3-edc6-778f-939b-5694a4c5dea8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d77e3-e57b-7fc3-bdfa-4d5edd4a56d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d77e3-91df-76fd-8442-1f7e3b8dab34" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d77e3-e57b-7fc3-bdfa-4d5edd4a56d2" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/ScheduleHLine4iScheduleofAssetsHeldatEndofYearDetails" xlink:type="simple" xlink:href="zions-20260625.xsd#ScheduleHLine4iScheduleofAssetsHeldatEndofYearDetails"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/ScheduleHLine4iScheduleofAssetsHeldatEndofYearDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d73dc-8264-7d37-8137-88ad3f70b1df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d73dc-8264-7d37-8137-88ad3f70b1df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-8264-7d37-8137-88ad3f70b1df_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d73dc-8264-7d37-8137-88ad3f70b1df" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-8264-7d37-8137-88ad3f70b1df_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-a9ae-7cb0-bbeb-3a0be3243a0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d73dc-8264-7d37-8137-88ad3f70b1df" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-a9ae-7cb0-bbeb-3a0be3243a0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019eb77e-d142-750e-8b21-2948df881833" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-a9ae-7cb0-bbeb-3a0be3243a0c" xlink:to="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019eb77e-d142-750e-8b21-2948df881833" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_RegisteredInvestmentCompaniesMember_019eb780-a1f4-7cc4-8a7e-bb2bee2f1939" xlink:href="zions-20260625.xsd#zions_RegisteredInvestmentCompaniesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-a9ae-7cb0-bbeb-3a0be3243a0c" xlink:to="loc_zions_RegisteredInvestmentCompaniesMember_019eb780-a1f4-7cc4-8a7e-bb2bee2f1939" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d73dd-09fe-7881-ab1f-b2ceecc582b5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:to="loc_dei_LegalEntityAxis_019d73dd-09fe-7881-ab1f-b2ceecc582b5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d73dd-09fe-7881-ab1f-b2ceecc582b5_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d73dd-09fe-7881-ab1f-b2ceecc582b5" xlink:to="loc_dei_EntityDomain_019d73dd-09fe-7881-ab1f-b2ceecc582b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d73dd-23ab-7afb-94fe-348e4d592eff" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d73dd-09fe-7881-ab1f-b2ceecc582b5" xlink:to="loc_dei_EntityDomain_019d73dd-23ab-7afb-94fe-348e4d592eff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d73dd-2e83-7817-9231-3b250a80a5f7" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d73dd-23ab-7afb-94fe-348e4d592eff" xlink:to="loc_zions_EBP006Member_019d73dd-2e83-7817-9231-3b250a80a5f7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIdentifierAxis_019d73dd-8923-7c76-b821-a6410549734d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIdentifierAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:to="loc_us-gaap_InvestmentIdentifierAxis_019d73dd-8923-7c76-b821-a6410549734d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e899c-56aa-783b-b3aa-982ac754602a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e899c-56aa-783b-b3aa-982ac754602a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-783b-b3aa-982ac754602a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e899c-56aa-783b-b3aa-982ac754602a" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-783b-b3aa-982ac754602a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-7f06-b028-991dec794737" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e899c-56aa-783b-b3aa-982ac754602a" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-7f06-b028-991dec794737" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanOtherRelatedPartyAndPartyInInterestMember_019e899c-6cc2-704e-8842-89c296eae65f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanOtherRelatedPartyAndPartyInInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-7f06-b028-991dec794737" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanOtherRelatedPartyAndPartyInInterestMember_019e899c-6cc2-704e-8842-89c296eae65f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019eb779-76bc-799a-bc32-bb58d80d338a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:to="loc_srt_RangeAxis_019eb779-76bc-799a-bc32-bb58d80d338a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019eb779-76bc-799a-bc32-bb58d80d338a_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019eb779-76bc-799a-bc32-bb58d80d338a" xlink:to="loc_srt_RangeMember_019eb779-76bc-799a-bc32-bb58d80d338a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019eb779-76bc-7b95-b03d-23be0e2bd816" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019eb779-76bc-799a-bc32-bb58d80d338a" xlink:to="loc_srt_RangeMember_019eb779-76bc-7b95-b03d-23be0e2bd816" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019eb779-bf6d-76e0-a0e7-6f7f12cbeb8b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019eb779-76bc-7b95-b03d-23be0e2bd816" xlink:to="loc_srt_MinimumMember_019eb779-bf6d-76e0-a0e7-6f7f12cbeb8b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019eb779-d720-7bb6-bf76-b9be3b2e1cf7" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019eb779-76bc-7b95-b03d-23be0e2bd816" xlink:to="loc_srt_MaximumMember_019eb779-d720-7bb6-bf76-b9be3b2e1cf7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019d73e2-a7ff-7d82-bb51-c32e38839f38" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_dei_EntityTaxIdentificationNumber_019d73e2-a7ff-7d82-bb51-c32e38839f38" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanPlanNumber_019d73e2-bf13-704a-84ad-fd998cc16c00" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanPlanNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanPlanNumber_019d73e2-bf13-704a-84ad-fd998cc16c00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_019eb777-e1f8-73ab-9d6b-e771bcfac70c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_019eb777-e1f8-73ab-9d6b-e771bcfac70c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustCost_019e8998-3631-7c3e-8ea8-ef44d0f9f405" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustCost_019e8998-3631-7c3e-8ea8-ef44d0f9f405" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue_019d73e2-378c-7666-bdcd-d1cd6be29b32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue_019d73e2-378c-7666-bdcd-d1cd6be29b32" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019eb779-4ced-7088-8103-ffa477979725" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019eb779-4ced-7088-8103-ffa477979725" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution_019d73e2-2607-7001-9596-487e7f9ff7f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution_019d73e2-2607-7001-9596-487e7f9ff7f8" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.zionsbancorp.com/role/ScheduleHLine4iScheduleofAssetsHeldatEndofYearDetails_1" xlink:type="simple" xlink:href="zions-20260625.xsd#ScheduleHLine4iScheduleofAssetsHeldatEndofYearDetails_1"/>
  <link:definitionLink xlink:role="http://www.zionsbancorp.com/role/ScheduleHLine4iScheduleofAssetsHeldatEndofYearDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d73dc-8264-7d37-8137-88ad3f70b1df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d73dc-8264-7d37-8137-88ad3f70b1df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-8264-7d37-8137-88ad3f70b1df_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d73dc-8264-7d37-8137-88ad3f70b1df" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-8264-7d37-8137-88ad3f70b1df_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-a9ae-7cb0-bbeb-3a0be3243a0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d73dc-8264-7d37-8137-88ad3f70b1df" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-a9ae-7cb0-bbeb-3a0be3243a0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019eb77e-d142-750e-8b21-2948df881833" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-a9ae-7cb0-bbeb-3a0be3243a0c" xlink:to="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019eb77e-d142-750e-8b21-2948df881833" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_RegisteredInvestmentCompaniesMember_019eb780-a1f4-7cc4-8a7e-bb2bee2f1939" xlink:href="zions-20260625.xsd#zions_RegisteredInvestmentCompaniesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d73dc-a9ae-7cb0-bbeb-3a0be3243a0c" xlink:to="loc_zions_RegisteredInvestmentCompaniesMember_019eb780-a1f4-7cc4-8a7e-bb2bee2f1939" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d73dd-09fe-7881-ab1f-b2ceecc582b5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:to="loc_dei_LegalEntityAxis_019d73dd-09fe-7881-ab1f-b2ceecc582b5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d73dd-09fe-7881-ab1f-b2ceecc582b5_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d73dd-09fe-7881-ab1f-b2ceecc582b5" xlink:to="loc_dei_EntityDomain_019d73dd-09fe-7881-ab1f-b2ceecc582b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d73dd-23ab-7afb-94fe-348e4d592eff" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d73dd-09fe-7881-ab1f-b2ceecc582b5" xlink:to="loc_dei_EntityDomain_019d73dd-23ab-7afb-94fe-348e4d592eff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_zions_EBP006Member_019d73dd-2e83-7817-9231-3b250a80a5f7" xlink:href="zions-20260625.xsd#zions_EBP006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d73dd-23ab-7afb-94fe-348e4d592eff" xlink:to="loc_zions_EBP006Member_019d73dd-2e83-7817-9231-3b250a80a5f7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e899c-56aa-783b-b3aa-982ac754602a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e899c-56aa-783b-b3aa-982ac754602a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-783b-b3aa-982ac754602a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e899c-56aa-783b-b3aa-982ac754602a" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-783b-b3aa-982ac754602a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-7f06-b028-991dec794737" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e899c-56aa-783b-b3aa-982ac754602a" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-7f06-b028-991dec794737" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanOtherRelatedPartyAndPartyInInterestMember_019e899c-6cc2-704e-8842-89c296eae65f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanOtherRelatedPartyAndPartyInInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e899c-56aa-7f06-b028-991dec794737" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanOtherRelatedPartyAndPartyInInterestMember_019e899c-6cc2-704e-8842-89c296eae65f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019eb779-76bc-799a-bc32-bb58d80d338a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d73dc-3e32-7ad1-85e8-5dd0968a1e73" xlink:to="loc_srt_RangeAxis_019eb779-76bc-799a-bc32-bb58d80d338a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019eb779-76bc-799a-bc32-bb58d80d338a_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019eb779-76bc-799a-bc32-bb58d80d338a" xlink:to="loc_srt_RangeMember_019eb779-76bc-799a-bc32-bb58d80d338a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019eb779-76bc-7b95-b03d-23be0e2bd816" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019eb779-76bc-799a-bc32-bb58d80d338a" xlink:to="loc_srt_RangeMember_019eb779-76bc-7b95-b03d-23be0e2bd816" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019eb779-bf6d-76e0-a0e7-6f7f12cbeb8b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019eb779-76bc-7b95-b03d-23be0e2bd816" xlink:to="loc_srt_MinimumMember_019eb779-bf6d-76e0-a0e7-6f7f12cbeb8b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019eb779-d720-7bb6-bf76-b9be3b2e1cf7" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019eb779-76bc-7b95-b03d-23be0e2bd816" xlink:to="loc_srt_MaximumMember_019eb779-d720-7bb6-bf76-b9be3b2e1cf7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019d73e2-a7ff-7d82-bb51-c32e38839f38" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_dei_EntityTaxIdentificationNumber_019d73e2-a7ff-7d82-bb51-c32e38839f38" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanPlanNumber_019d73e2-bf13-704a-84ad-fd998cc16c00" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanPlanNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanPlanNumber_019d73e2-bf13-704a-84ad-fd998cc16c00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_019eb777-e1f8-73ab-9d6b-e771bcfac70c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_019eb777-e1f8-73ab-9d6b-e771bcfac70c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustCost_019e8998-3631-7c3e-8ea8-ef44d0f9f405" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustCost_019e8998-3631-7c3e-8ea8-ef44d0f9f405" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue_019d73e2-378c-7666-bdcd-d1cd6be29b32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue_019d73e2-378c-7666-bdcd-d1cd6be29b32" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019eb779-4ced-7088-8103-ffa477979725" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019eb779-4ced-7088-8103-ffa477979725" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution_019d73e2-2607-7001-9596-487e7f9ff7f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d73e2-1674-7dd5-8a9a-360d7470a075" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution_019d73e2-2607-7001-9596-487e7f9ff7f8" xlink:type="arc" order="6"/>
  </link:definitionLink>
</link:linkbase>
