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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019eada2-d001-7279-8674-10c1df90d124,g:192dc7d0-72a1-4564-8608-35169cc3b947-->
<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.tranetechnologies.com/role/Cover" xlink:type="simple" xlink:href="tt-20260604.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.tranetechnologies.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019eada2-d002-7bc2-a0c4-fafa35fa3299" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_DocumentInformationTable_019eada2-d002-7bc2-a0c4-fafa35fa3299" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019eada2-d002-76d3-9376-6cc0c1b36763" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_019eada2-d002-7bc2-a0c4-fafa35fa3299" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019eada2-d002-76d3-9376-6cc0c1b36763" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019eada2-d002-76d3-9376-6cc0c1b36763_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019eada2-d002-76d3-9376-6cc0c1b36763" xlink:to="loc_us-gaap_ClassOfStockDomain_019eada2-d002-76d3-9376-6cc0c1b36763_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019eada2-d002-7bf6-b351-f5300440c579" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019eada2-d002-76d3-9376-6cc0c1b36763" xlink:to="loc_us-gaap_ClassOfStockDomain_019eada2-d002-7bf6-b351-f5300440c579" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019eada2-d002-7558-b691-61d969d394b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019eada2-d002-7bf6-b351-f5300440c579" xlink:to="loc_us-gaap_CommonStockMember_019eada2-d002-7558-b691-61d969d394b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019eada2-d002-743f-ae4b-82aebeac5185" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019eada2-d002-7bf6-b351-f5300440c579" xlink:to="loc_us-gaap_SeniorNotesMember_019eada2-d002-743f-ae4b-82aebeac5185" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019eada2-d002-7674-bea4-46480a7ceaf9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_Security12bTitle_019eada2-d002-7674-bea4-46480a7ceaf9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019eada2-d002-715a-9ae4-a5aa934cc522" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_SecurityExchangeName_019eada2-d002-715a-9ae4-a5aa934cc522" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019eada2-d002-7fac-aace-1eb644ae26f4" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_TradingSymbol_019eada2-d002-7fac-aace-1eb644ae26f4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019eada2-d002-76d5-ba42-1705386f5e69" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_DocumentPeriodEndDate_019eada2-d002-76d5-ba42-1705386f5e69" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019eada2-d002-799f-99a3-a0f515d51e58" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_DocumentType_019eada2-d002-799f-99a3-a0f515d51e58" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019eada2-d002-7297-a23a-834d725ca24d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityRegistrantName_019eada2-d002-7297-a23a-834d725ca24d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019eada2-d002-70c8-b60e-7472b2142ae3" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019eada2-d002-70c8-b60e-7472b2142ae3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019eada2-d002-795a-bef7-6294c0f6a388" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityFileNumber_019eada2-d002-795a-bef7-6294c0f6a388" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019eada2-d002-7bb7-8305-22ae18a8b7a4" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityTaxIdentificationNumber_019eada2-d002-7bb7-8305-22ae18a8b7a4" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019eada2-d002-79f0-ba55-c446a974aec9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityAddressAddressLine1_019eada2-d002-79f0-ba55-c446a974aec9" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019eada2-d002-79c1-a05c-acef91a4f97d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityAddressAddressLine2_019eada2-d002-79c1-a05c-acef91a4f97d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019eada2-d002-70fd-b374-875550854cf0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityAddressCityOrTown_019eada2-d002-70fd-b374-875550854cf0" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCountry_019eada2-d002-73d7-8938-0f632f7fb734" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCountry"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityAddressCountry_019eada2-d002-73d7-8938-0f632f7fb734" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019eada2-d002-74fb-a060-e7c243267f43" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_CityAreaCode_019eada2-d002-74fb-a060-e7c243267f43" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019eada2-d002-7c5b-bfbf-a7886b11c407" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_LocalPhoneNumber_019eada2-d002-7c5b-bfbf-a7886b11c407" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019eada2-d002-7757-9996-3b3e147656a7" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_WrittenCommunications_019eada2-d002-7757-9996-3b3e147656a7" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019eada2-d002-700a-be44-73cb2d759937" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_SolicitingMaterial_019eada2-d002-700a-be44-73cb2d759937" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019eada2-d002-782a-a2b6-3a0c9015720a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_PreCommencementTenderOffer_019eada2-d002-782a-a2b6-3a0c9015720a" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019eada2-d002-752a-821a-8875ca9e2867" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019eada2-d002-752a-821a-8875ca9e2867" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019eada2-d002-7d93-8a51-894d7906c9e7" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityEmergingGrowthCompany_019eada2-d002-7d93-8a51-894d7906c9e7" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019eada2-d002-7003-9c6d-3f54f344adbb" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityCentralIndexKey_019eada2-d002-7003-9c6d-3f54f344adbb" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019eada2-d002-763f-8fd7-ff3b3a58ac80" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_AmendmentFlag_019eada2-d002-763f-8fd7-ff3b3a58ac80" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_NoTradingSymbolFlag_019eada2-d002-7760-880c-cc2162bc97b8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_NoTradingSymbolFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_NoTradingSymbolFlag_019eada2-d002-7760-880c-cc2162bc97b8" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019eada2-d002-785c-bcfe-1d10a2ac664f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019eada2-d002-7979-926d-0d7cb2bd7240" xlink:to="loc_dei_EntityAddressPostalZipCode_019eada2-d002-785c-bcfe-1d10a2ac664f" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInformationLineItems_019eada2-d002-742e-9339-a7a372b1fb35" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable_019eada2-d002-73de-98d2-7ce554dfd4c9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityInformationLineItems_019eada2-d002-742e-9339-a7a372b1fb35" xlink:to="loc_dei_EntitiesTable_019eada2-d002-73de-98d2-7ce554dfd4c9" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019eada2-d002-75c4-b3a8-029cbeae06c0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019eada2-d002-742e-9339-a7a372b1fb35" xlink:to="loc_dei_EntityRegistrantName_019eada2-d002-75c4-b3a8-029cbeae06c0" xlink:type="arc" order="0"/>
  </link:definitionLink>
</link:linkbase>
