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      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001085536</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
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      <issuerInfo>
        <issuerCik>0000860731</issuerCik>
        <issuerName>TYLER TECHNOLOGIES INC</issuerName>
        <secFileNumber>001-10485</secFileNumber>
        <issuerAddress>
          <com:street1>5101 TENNYSON PKWY</com:street1>
          <com:city>PLANO</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>75024</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>9727133700</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MARR JOHN S JR</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Spouse of Affiliate</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>Boston</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>3500</noOfUnitsSold>
        <aggregateMarketValue>2187570.00</aggregateMarketValue>
        <noOfUnitsOutstanding>42798585</noOfUnitsOutstanding>
        <approxSaleDate>12/12/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>04/20/1999</acquiredDate>
        <natureOfAcquisitionTransaction>Merger/acquisition </natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer </nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4000</amountOfSecuritiesAcquired>
        <paymentDate>02/20/1999</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Rebecca L Marr Marr/Anderson Family foundation </name>
          <address>
            <com:street1>5101 Tennyson Parkway </com:street1>
            <com:city>Plano </com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75024</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Tyler Technologies Inc </securitiesClassTitle>
        <saleDate>11/12/2024</saleDate>
        <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
        <grossProceeds>3065195.40</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Rebecca L Marr Marr/Anderson Family foundation</name>
          <address>
            <com:street1>5101 Tennyson Parkway </com:street1>
            <com:city>Plano </com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75024</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Tyler Technologies Inc	</securitiesClassTitle>
        <saleDate>11/13/2024</saleDate>
        <amountOfSecuritiesSold>6000</amountOfSecuritiesSold>
        <grossProceeds>3720516.54</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Rebecca L Marr Marr/Anderson Family foundation</name>
          <address>
            <com:street1>5101 Tennyson Parkway ,</com:street1>
            <com:city>Plano</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75024</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Tyler Technologies Inc	</securitiesClassTitle>
        <saleDate>11/25/2024</saleDate>
        <amountOfSecuritiesSold>12000</amountOfSecuritiesSold>
        <grossProceeds>7363911.24</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Rebecca L Marr Marr/Anderson Family foundation</name>
          <address>
            <com:street1>5101 Tennyson Parkway</com:street1>
            <com:city>Plano </com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75024</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Tyler Technologies Inc	</securitiesClassTitle>
        <saleDate>12/04/2024</saleDate>
        <amountOfSecuritiesSold>6000</amountOfSecuritiesSold>
        <grossProceeds>3801326.83</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>shares are being sold from MARR-ANDERSON FAMILY FOUNDATION/ Rebecca Marr</remarks>
      <noticeSignature>
        <noticeDate>12/12/2024</noticeDate>
        <signature>/s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for JOHN S MARR JR</signature>
      </noticeSignature>
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text: 144
  0001085536
  XXXXXXXX
  LIVE
  0000860731
  TYLER TECHNOLOGIES INC
  001-10485
  5101 TENNYSON PKWY
  PLANO
  TX
  75024
  9727133700
  MARR JOHN S JR
  Spouse of Affiliate
  Common
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  3500
  2187570.00
  42798585
  12/12/2024
  NYSE
  Common
  04/20/1999
  Merger/acquisition
  Issuer
  N
  4000
  02/20/1999
  N/A
  N
  Rebecca L Marr Marr/Anderson Family foundation
  5101 Tennyson Parkway
  Plano
  TX
  75024
  Tyler Technologies Inc
  11/12/2024
  5000
  3065195.40
  Rebecca L Marr Marr/Anderson Family foundation
  5101 Tennyson Parkway
  Plano
  TX
  75024
  Tyler Technologies Inc
  11/13/2024
  6000
  3720516.54
  Rebecca L Marr Marr/Anderson Family foundation
  5101 Tennyson Parkway ,
  Plano
  TX
  75024
  Tyler Technologies Inc
  11/25/2024
  12000
  7363911.24
  Rebecca L Marr Marr/Anderson Family foundation
  5101 Tennyson Parkway
  Plano
  TX
  75024
  Tyler Technologies Inc
  12/04/2024
  6000
  3801326.83
  shares are being sold from MARR-ANDERSON FAMILY FOUNDATION/ Rebecca Marr
  12/12/2024
  /s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for JOHN S MARR JR