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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 BpitYc+s8Kwr4ET+qmYhuN0LrcAf09NXM+Nqv7MlXPW5VPbB2PQVcpjnKUO6voPo
 7qyYgc1tELITZHUhfsP3tg==

<SEC-DOCUMENT>0001179110-09-012807.txt : 20090902
<SEC-HEADER>0001179110-09-012807.hdr.sgml : 20090902
<ACCEPTANCE-DATETIME>20090902164532
ACCESSION NUMBER:		0001179110-09-012807
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090831
FILED AS OF DATE:		20090902
DATE AS OF CHANGE:		20090902

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BELETIC JOHN D
		CENTRAL INDEX KEY:			0001229710

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33938
		FILM NUMBER:		091051391

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TESSCO TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0000927355
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-ELECTRONIC PARTS & EQUIPMENT, NEC [5065]
		IRS NUMBER:				520729657
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0329

	BUSINESS ADDRESS:	
		STREET 1:		11126 MCCORMICK ROAD
		CITY:			HUNT VALLEY
		STATE:			MD
		ZIP:			21031
		BUSINESS PHONE:		4102291000

	MAIL ADDRESS:	
		STREET 1:		11126 MCCORMICK ROAD
		CITY:			HUNT VALLEY
		STATE:			MD
		ZIP:			2121031
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-08-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000927355</issuerCik>
        <issuerName>TESSCO TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>TESS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001229710</rptOwnerCik>
            <rptOwnerName>BELETIC JOHN D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3219 DREXEL DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75205</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-08-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1044</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>15.75</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>52633</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Drexel Investments</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The ownership form of all of Mr. Beletic's shares is indirect - 18,124 shares are owned by John &amp; Anne Partnership, LTD and 34,509 shares are owned by Drexel Investments, LTD.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>John D. Beletic by David Young by Power of Attorney</signatureName>
        <signatureDate>2009-09-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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