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  <schemaVersion>X0202</schemaVersion>
  <headerData>
    <submissionType>13F-HR</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags/>
      <filer>
        <credentials>
          <cik>0002055575</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
      </filer>
      <periodOfReport>03-31-2026</periodOfReport>
    </filerInfo>
  </headerData>
  <formData>
    <coverPage>
      <reportCalendarOrQuarter>03-31-2026</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>KHIS Custodian LP</name>
        <address>
          <ns1:street1>2021 MCKINNEY AVENUE, SUITE 1200</ns1:street1>
          <ns1:city>DALLAS</ns1:city>
          <ns1:stateOrCountry>TX</ns1:stateOrCountry>
          <ns1:zipCode>75201</ns1:zipCode>
        </address>
      </filingManager>
      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-26548</form13FFileNumber>
      <provideInfoForInstruction5>Y</provideInfoForInstruction5>
      <additionalInformation>In connection with a sale and distribution in-kind of all shares of Karman Holdings, Inc. held by KHIS Custodian LP, certain limited partners requested that KHIS Custodian LP continue to manage their shares of Karman Holdings, Inc. None of KHIS Custodian LP, its general partner, KHIS Custodian GP LLC, the managing member of its general partner, Trive Capital Holdings LLC or any of their affiliated entities have any pecuniary interest in the securities reported herein.</additionalInformation>
    </coverPage>
    <signatureBlock>
      <name>Conner Searcy</name>
      <title>Managing Partner</title>
      <phone>214.499.9715</phone>
      <signature>/s/ Conner Searcy</signature>
      <city>Dallas</city>
      <stateOrCountry>TX</stateOrCountry>
      <signatureDate>05-15-2026</signatureDate>
    </signatureBlock>
    <summaryPage>
      <otherIncludedManagersCount>0</otherIncludedManagersCount>
      <tableEntryTotal>1</tableEntryTotal>
      <tableValueTotal>315591361</tableValueTotal>
      <isConfidentialOmitted>false</isConfidentialOmitted>
    </summaryPage>
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