<?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>0001085536</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>MARR JOHN S JR</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</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>32738</noOfUnitsSold>
      <aggregateMarketValue>12706927.00</aggregateMarketValue>
      <noOfUnitsOutstanding>41925317</noOfUnitsOutstanding>
      <approxSaleDate>05/16/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>11/24/2014</acquiredDate>
      <natureOfAcquisitionTransaction>Merger/Acquisition</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>15304</amountOfSecuritiesAcquired>
      <paymentDate>11/24/2014</paymentDate>
      <natureOfPayment>N/A</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>11/16/2015</acquiredDate>
      <natureOfAcquisitionTransaction>Merger/Acquisition</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>12666</amountOfSecuritiesAcquired>
      <paymentDate>11/16/2015</paymentDate>
      <natureOfPayment>N/A</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>common</securitiesClassTitle>
      <acquiredDate>08/23/2017</acquiredDate>
      <natureOfAcquisitionTransaction>Merger/Acquisition</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4768</amountOfSecuritiesAcquired>
      <paymentDate>08/23/2017</paymentDate>
      <natureOfPayment>N/A</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Rebecca L Marr Rev Trust</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</securitiesClassTitle>
      <saleDate>03/14/2023</saleDate>
      <amountOfSecuritiesSold>750</amountOfSecuritiesSold>
      <grossProceeds>2439375.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Rebecca L Marr Rev Trust</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>05/04/2023</saleDate>
      <amountOfSecuritiesSold>6000</amountOfSecuritiesSold>
      <grossProceeds>2274780.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Rebecca L Marr Rev Trust</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>05/05/2023</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>1934950.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>shares being sold out of Rebecca L Marr Rev trust</remarks>
    <noticeSignature>
      <noticeDate>05/16/2023</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>
  </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 5758}]
144
0001085536
XXXXXXXX
LIVE
0000860731
TYLER TECHNOLOGIES INC
001-10485
5101 TENNYSON PKWY
PLANO
TX
75024
9727133700
MARR JOHN S JR
Officer
Common
Fidelity Brokerage Services LLC
245 summer street
boston
MA
02110
32738
12706927.00
41925317
05/16/2023
NYSE
Common
11/24/2014
Merger/Acquisition
Issuer
N
15304
11/24/2014
N/A
Common
11/16/2015
Merger/Acquisition
Issuer
N
12666
11/16/2015
N/A
common
08/23/2017
Merger/Acquisition
Issuer
N
4768
08/23/2017
N/A
N
Rebecca L Marr Rev Trust
5101 Tennyson Parkway
Plano
TX
75024
Tyler Technologies
03/14/2023
750
2439375.00
Rebecca L Marr Rev Trust
5101 Tennyson Parkway
Plano
TX
75024
Tyler Technologies Inc
05/04/2023
6000
2274780.00
Rebecca L Marr Rev Trust
5101 Tennyson Parkway
PLano
TX
75024
Tyler Technologies Inc
05/05/2023
5000
1934950.00
shares being sold out of Rebecca L Marr Rev trust
05/16/2023
/s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for John S Marr  JR