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    <submissionType>13F-HR</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags>
        <confirmingCopyFlag>false</confirmingCopyFlag>
        <returnCopyFlag>false</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
      </flags>
      <filer>
        <credentials>
          <cik>0001647251</cik>
          <ccc>XXXXXXXX</ccc>
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      <periodOfReport>03-31-2026</periodOfReport>
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    <coverPage>
      <reportCalendarOrQuarter>03-31-2026</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>TCI FUND MANAGEMENT LTD</name>
        <address>
          <ns1:street1>7 CLIFFORD STREET</ns1:street1>
          <ns1:city>LONDON</ns1:city>
          <ns1:stateOrCountry>X0</ns1:stateOrCountry>
          <ns1:zipCode>W1S2FT</ns1:zipCode>
        </address>
      </filingManager>
      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-16990</form13FFileNumber>
      <crdNumber>000269954</crdNumber>
      <secFileNumber>802-102468</secFileNumber>
      <provideInfoForInstruction5>N</provideInfoForInstruction5>
    </coverPage>
    <signatureBlock>
      <name>Angus Milne</name>
      <title>Head of Compliance</title>
      <phone>44-20-7440-2330</phone>
      <signature>/s/ Angus Milne</signature>
      <city>London</city>
      <stateOrCountry>X0</stateOrCountry>
      <signatureDate>05-15-2026</signatureDate>
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      <isConfidentialOmitted>false</isConfidentialOmitted>
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