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<edgarSubmission xmlns="http://www.sec.gov/edgar/thirteenffiler" xmlns:com="http://www.sec.gov/edgar/common">
  <schemaVersion>X0202</schemaVersion>
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    <submissionType>13F-HR</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags>
        <confirmingCopyFlag>false</confirmingCopyFlag>
        <returnCopyFlag>true</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
      </flags>
      <filer>
        <credentials>
          <cik>0001483870</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
      </filer>
      <periodOfReport>03-31-2026</periodOfReport>
    </filerInfo>
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    <coverPage>
      <reportCalendarOrQuarter>03-31-2026</reportCalendarOrQuarter>
      <filingManager>
        <name>TCTC Holdings, LLC</name>
        <address>
          <com:street1>3838 OAK LAWN AVENUE</com:street1>
          <com:street2>SUITE 1650</com:street2>
          <com:city>DALLAS</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>75219</com:zipCode>
        </address>
      </filingManager>
      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-13830</form13FFileNumber>
      <provideInfoForInstruction5>N</provideInfoForInstruction5>
    </coverPage>
    <signatureBlock>
      <name>Sarah Heimbach Wood</name>
      <title>Chief Compliance Officer</title>
      <phone>214-382-4811</phone>
      <signature>/s/ Sarah Heimbach Wood</signature>
      <city>Dallas</city>
      <stateOrCountry>TX</stateOrCountry>
      <signatureDate>05-07-2026</signatureDate>
    </signatureBlock>
    <summaryPage>
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      <tableEntryTotal>325</tableEntryTotal>
      <tableValueTotal>3513767524</tableValueTotal>
      <isConfidentialOmitted>false</isConfidentialOmitted>
      <otherManagers2Info>
        <otherManager2>
          <sequenceNumber>1</sequenceNumber>
          <otherManager>
            <form13FFileNumber>028-12874</form13FFileNumber>
            <name>Turtle Creek Management, LLC</name>
          </otherManager>
        </otherManager2>
        <otherManager2>
          <sequenceNumber>2</sequenceNumber>
          <otherManager>
            <form13FFileNumber>028-13831</form13FFileNumber>
            <name>Turtle Creek Trust Company, LTA</name>
          </otherManager>
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