-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 SJR3cbE22D2JPHuu6ym8ABw/Prz/C72ox3v+GV/fHQURXrI/ojWFoTVAm6oeQ0iu
 sYR+IEvIJTLAo97E5xDfwA==

<SEC-DOCUMENT>0001144204-10-025802.txt : 20100510
<SEC-HEADER>0001144204-10-025802.hdr.sgml : 20100510
<ACCEPTANCE-DATETIME>20100510163541
ACCESSION NUMBER:		0001144204-10-025802
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100506
FILED AS OF DATE:		20100510
DATE AS OF CHANGE:		20100510

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hartch Timothy E.
		CENTRAL INDEX KEY:			0001490456

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10485
		FILM NUMBER:		10816787

	MAIL ADDRESS:	
		STREET 1:		C/O BROWN BROTHERS HARRIMAN & CO.
		STREET 2:		140 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Witmer Richard H.
		CENTRAL INDEX KEY:			0001490760

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10485
		FILM NUMBER:		10816786

	MAIL ADDRESS:	
		STREET 1:		C/O BROWN BROTHERS HARRIMAN & CO.
		STREET 2:		140 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TYLER TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0000860731
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				752303920
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5949 SHERRY LANE
		STREET 2:		SUITE 1400
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225
		BUSINESS PHONE:		9727133700

	MAIL ADDRESS:	
		STREET 1:		5949 SHERRY LANE
		STREET 2:		SUITE 1400
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TYLER CORP /NEW/
		DATE OF NAME CHANGE:	19930328

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TYLER THREE INC
		DATE OF NAME CHANGE:	19600201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BROWN BROTHERS HARRIMAN & CO
		CENTRAL INDEX KEY:			0000014661
		STATE OF INCORPORATION:			NY

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10485
		FILM NUMBER:		10816789

	BUSINESS ADDRESS:	
		STREET 1:		140 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005-1101
		BUSINESS PHONE:		2124938200

	MAIL ADDRESS:	
		STREET 1:		140 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005-1101

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			1818 Master Partners, Ltd.
		CENTRAL INDEX KEY:			0001490445
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10485
		FILM NUMBER:		10816788

	BUSINESS ADDRESS:	
		STREET 1:		C/O BROWN BROTHERS HARRIMAN & CO.
		STREET 2:		140 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005
		BUSINESS PHONE:		212-483-1818

	MAIL ADDRESS:	
		STREET 1:		C/O BROWN BROTHERS HARRIMAN & CO.
		STREET 2:		140 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>v184236_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-05-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000860731</issuerCik>
        <issuerName>TYLER TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>TYL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000014661</rptOwnerCik>
            <rptOwnerName>BROWN BROTHERS HARRIMAN &amp; CO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>140 BROADWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10005-1101</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001490445</rptOwnerCik>
            <rptOwnerName>1818 Master Partners, Ltd.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BROWN BROTHERS HARRIMAN &amp; CO.</rptOwnerStreet1>
            <rptOwnerStreet2>140 BROADWAY</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10005</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001490456</rptOwnerCik>
            <rptOwnerName>Hartch Timothy E.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BROWN BROTHERS HARRIMAN &amp; CO.</rptOwnerStreet1>
            <rptOwnerStreet2>140 BROADWAY</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10005</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001490760</rptOwnerCik>
            <rptOwnerName>Witmer Richard H.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BROWN BROTHERS HARRIMAN &amp; CO.</rptOwnerStreet1>
            <rptOwnerStreet2>140 BROADWAY</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10005</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-05-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>57096</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>17.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3597346</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See note</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-05-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>87667</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.90</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3685013</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See note</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">All shares reported on this Form 4 are held by 1818 Master Partners, Ltd. (the &quot;Fund&quot;) on behalf of investors in the Fund.
 Brown Brothers Harriman &amp; Co. (&quot;BBH&amp;Co.&quot;), which holds the voting interest (management shares) in the Fund, has designated
 Richard H. Witmer and Timothy E. Hartch, or either of them, as the sole and exclusive persons at BBH&amp;Co. having voting power
 (including the power to vote or to direct the vote) and investment power (including the power to dispose or to direct the
 disposition) with respect to all investments of the Fund.  Each reporting person disclaims beneficial ownership of the
 reported securities except to the extent of its or his pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Howard M. Felson, Vice President, BROWN BROTHERS HARRIMAN &amp; CO.</signatureName>
        <signatureDate>2010-05-10</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Richard H. Witmer, Director, 1818 MASTER PARTNERS, LTD.</signatureName>
        <signatureDate>2010-05-10</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Richard H. Witmer</signatureName>
        <signatureDate>2010-05-10</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Timothy E. Hartch</signatureName>
        <signatureDate>2010-05-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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