-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 CCsB+67JsZ2tUeS8J7dzUFkAPSQySKpYrBroT3onV9JXzrQ4WnMRDrohxBwgvMoa
 Ad+zaPQo/Ed+xgnFj2nzCg==

<SEC-DOCUMENT>0001181431-03-013180.txt : 20030703
<SEC-HEADER>0001181431-03-013180.hdr.sgml : 20030703
<ACCEPTANCE-DATETIME>20030703165318
ACCESSION NUMBER:		0001181431-03-013180
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030625
FILED AS OF DATE:		20030703

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MANTECH INTERNATIONAL CORP
		CENTRAL INDEX KEY:			0000892537
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT SERVICES [8741]
		IRS NUMBER:				221852179
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		12015 LEE JACKSON MEMORIAL HIGHWAY
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22033-3300
		BUSINESS PHONE:		703-218-6000

	MAIL ADDRESS:	
		STREET 1:		12015 LEE JACKSON MEMORIAL HIGHWAY
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22033-3300

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SPOEHEL RONALD R
		CENTRAL INDEX KEY:			0001250348

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-49604
		FILM NUMBER:		03775721

	BUSINESS ADDRESS:	
		STREET 1:		12015 LEE JACKSON HIGHWAY
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22033
		BUSINESS PHONE:		7032186000

	MAIL ADDRESS:	
		STREET 1:		12015 LEE JACKSON HIGHWAY
		CITY:			FAIRFAX
		STATE:			VA
		ZIP:			22033
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>rrd12675.xml
<DESCRIPTION>JULY FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0101</schemaVersion>

    <documentType>3</documentType>
<periodOfReport>2003-06-25</periodOfReport>
    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000892537</issuerCik>
        <issuerName>MANTECH INTERNATIONAL CORP</issuerName>
        <issuerTradingSymbol>MANT</issuerTradingSymbol></issuer>
<reportingOwner>
<reportingOwnerId>
            <rptOwnerCik>0001250348</rptOwnerCik>
            <rptOwnerName>SPOEHEL RONALD R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>1</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle>Executive VP and CFO</officerTitle>
<otherText></otherText></reportingOwnerRelationship></reportingOwner>
<derivativeSecurity>
<securityTitle>
<value>Incentive Stock Option (Right to Buy)</value></securityTitle>
<conversionOrExercisePrice>
<value>18.35</value></conversionOrExercisePrice>
<exerciseDate>
<value>2004-06-25</value>
<footnoteId id="F1"/></exerciseDate>
<expirationDate>
<value>2013-06-24</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Class A Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>16348</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<derivativeSecurity>
<securityTitle>
<value>Non-Qualified Stock Option (Right to Buy)</value></securityTitle>
<conversionOrExercisePrice>
<value>18.35</value></conversionOrExercisePrice>
<exerciseDate>
<value>2004-06-25</value>
<footnoteId id="F1"/></exerciseDate>
<expirationDate>
<value>2013-06-24</value></expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Class A Common Stock</value></underlyingSecurityTitle>
<underlyingSecurityShares>
<value>33652</value></underlyingSecurityShares></underlyingSecurity>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value></directOrIndirectOwnership>
<natureOfOwnership>
<value></value></natureOfOwnership></ownershipNature></derivativeSecurity>
<footnotes>
<footnote id="F1">One-Third vests on each of the first, second and third anniversaries of the grant date.</footnote></footnotes>
<ownerSignature>
<signatureName>Ronald R. Spoehel</signatureName>
<signatureDate>2003-07-02</signatureDate></ownerSignature></ownershipDocument>


</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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