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>0001659021</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <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>Landrieu Mary L.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Neuberger Berman</name>
          <address>
            <com:street1>1290 Avenue of the Americas</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10104</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>325</noOfUnitsSold>
        <aggregateMarketValue>127894.00</aggregateMarketValue>
        <noOfUnitsOutstanding>41925317</noOfUnitsOutstanding>
        <approxSaleDate>06/14/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>05/11/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting &amp; Settlement of Restricted Stock</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Tyler Technologies Inc.</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>634</amountOfSecuritiesAcquired>
        <paymentDate>05/11/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>06/14/2023</noticeDate>
        <signature>/s/ Christian Nasser, as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Mary Landrieu</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 2859}]
text: 144
  0001659021
  XXXXXXXX
  LIVE
  0000860731
  TYLER TECHNOLOGIES INC
  001-10485
  5101 TENNYSON PKWY
  PLANO
  TX
  75024
  9727133700
  Landrieu Mary L.
  Director
  Common
  Neuberger Berman
  1290 Avenue of the Americas
  New York
  NY
  10104
  325
  127894.00
  41925317
  06/14/2023
  NYSE
  Common
  05/11/2022
  Vesting & Settlement of Restricted Stock
  Tyler Technologies Inc.
  N
  634
  05/11/2022
  Compensation
  Y
  06/14/2023
  /s/ Christian Nasser, as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Mary Landrieu