content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001060529</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000315709</issuerCik>
        <issuerName>INTERNATIONAL BANCSHARES CORP</issuerName>
        <secFileNumber>000-09439</secFileNumber>
        <issuerAddress>
          <com:street1>12OO SAN BERNARDO AVE</com:street1>
          <com:street2>PO BOX 1359</com:street2>
          <com:city>LAREDO</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78040-1359</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>9567227611</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>SANCHEZ ANTONIO R JR</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
          <relationshipToIssuer>10% Stockholder</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Piper Sandler</name>
          <address>
            <com:street1>800 Nicollet Mall</com:street1>
            <com:city>Minneapolis</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55402</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>100000</noOfUnitsSold>
        <aggregateMarketValue>6041000.00</aggregateMarketValue>
        <noOfUnitsOutstanding>62192105</noOfUnitsOutstanding>
        <approxSaleDate>08/22/2024</approxSaleDate>
        <securitiesExchangeName>Nasdaq</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>05/02/2006</acquiredDate>
        <natureOfAcquisitionTransaction>Annuity Payment</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Alicia M Sanchez Charitable Lead Annuity Trust</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>100000</amountOfSecuritiesAcquired>
        <paymentDate>05/02/2021</paymentDate>
        <natureOfPayment>Various</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>This Form 144 Filing is being made on behalf of the AR Tony and Maria J Sanchez Family Foundation</remarks>
      <noticeSignature>
        <noticeDate>08/22/2024</noticeDate>
        <signature>Alex Johnson, a duly authorized representative of Piper Sandler &amp; Co Corporate &amp; Venture Services FA, as attorney-in-fact for Antonio R Sanchez Jr.</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3141}]
text: 144
  0001060529
  XXXXXXXX
  LIVE
  0000315709
  INTERNATIONAL BANCSHARES CORP
  000-09439
  12OO SAN BERNARDO AVE
  PO BOX 1359
  LAREDO
  TX
  78040-1359
  9567227611
  SANCHEZ ANTONIO R JR
  Director
  10% Stockholder
  Common Stock
  Piper Sandler
  800 Nicollet Mall
  Minneapolis
  MN
  55402
  100000
  6041000.00
  62192105
  08/22/2024
  Nasdaq
  Common Stock
  05/02/2006
  Annuity Payment
  Alicia M Sanchez Charitable Lead Annuity Trust
  N
  100000
  05/02/2021
  Various
  Y
  This Form 144 Filing is being made on behalf of the AR Tony and Maria J Sanchez Family Foundation
  08/22/2024
  Alex Johnson, a duly authorized representative of Piper Sandler & Co Corporate & Venture Services FA, as attorney-in-fact for Antonio R Sanchez Jr.