-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 ElFGT0zWJ0mxavqRfezqKUEEYLx8o7z6CIiLVTMoLjP1bduJlBOYJm/E6bbcmOuY
 18tLNFIc1N7BarVgo7x3/Q==

<SEC-DOCUMENT>0001140361-11-012864.txt : 20110301
<SEC-HEADER>0001140361-11-012864.hdr.sgml : 20110301
<ACCEPTANCE-DATETIME>20110301113132
ACCESSION NUMBER:		0001140361-11-012864
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110228
FILED AS OF DATE:		20110301
DATE AS OF CHANGE:		20110301

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DYNAMICS RESEARCH CORP
		CENTRAL INDEX KEY:			0000030822
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
		IRS NUMBER:				042211809
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1229

	BUSINESS ADDRESS:	
		STREET 1:		60 FRONTAGE ROAD
		CITY:			ANDOVER
		STATE:			MA
		ZIP:			01810-5498
		BUSINESS PHONE:		9784759090

	MAIL ADDRESS:	
		STREET 1:		60 FRONTAGE ROAD
		CITY:			ANDOVER
		STATE:			MA
		ZIP:			01810-5498

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WENTZELL STEVEN P
		CENTRAL INDEX KEY:			0001234456

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34135
		FILM NUMBER:		11649744

	MAIL ADDRESS:	
		STREET 1:		71 LOG HILL ROAD
		CITY:			CARLISLE
		STATE:			MA
		ZIP:			01741
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-02-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000030822</issuerCik>
        <issuerName>DYNAMICS RESEARCH CORP</issuerName>
        <issuerTradingSymbol>DRCO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001234456</rptOwnerCik>
            <rptOwnerName>WENTZELL STEVEN P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>71 LOG HILL ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CARLISLE</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01741</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Senior Vice President</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </securityTitle>
            <transactionDate>
                <value>2011-02-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4957</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>15.05</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3893</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This trade originated outside of Fidelity Stock Plan Services.  It originated through a Fidelity Retail channel.</footnote>
        <footnote id="F2">Mulitiple lots for the same price for this order have been combined.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Richard A. Covel</signatureName>
        <signatureDate>2011-03-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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