-----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,
 In4bsrl5vlhrnGzreKMrHo5jMtJfdr8v3cJVtfs8+GoZF7wpLqx58vtrXlW74SZ1
 wIAplhq5l24nXZFKhQ3uXw==

<SEC-DOCUMENT>0001219038-03-000024.txt : 20031105
<SEC-HEADER>0001219038-03-000024.hdr.sgml : 20031105
<ACCEPTANCE-DATETIME>20031105174236
ACCESSION NUMBER:		0001219038-03-000024
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031103
FILED AS OF DATE:		20031105

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ENGEL FERDINAND
		CENTRAL INDEX KEY:			0001193593

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23067
		FILM NUMBER:		03980467

	BUSINESS ADDRESS:	
		STREET 1:		600 NICKERSON RD
		CITY:			MARLBORO
		STATE:			MA
		ZIP:			01752

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CONCORD COMMUNICATIONS INC
		CENTRAL INDEX KEY:			0000915290
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				042710876
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		600 NICKERSON RD
		CITY:			MARLBORO
		STATE:			MA
		ZIP:			01752
		BUSINESS PHONE:		5084604646

	MAIL ADDRESS:	
		STREET 1:		600 NICKERSON RD
		CITY:			MARLBORO
		STATE:			MA
		ZIP:			01752
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-11-03</periodOfReport>
    <issuer>
        <issuerCik>0000915290</issuerCik>
        <issuerName>CONCORD COMMUNICATIONS INC</issuerName>
        <issuerTradingSymbol>CCRD</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001193593</rptOwnerCik>
            <rptOwnerName>ENGEL FERDINAND</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CONCORD COMMUNICATIONS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>600 NICKERSON RD.</rptOwnerStreet2>
            <rptOwnerCity>MARLBORO</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01752</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>EVP, Engineering &amp; CTO</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock, $0.01 par value</value></securityTitle><transactionDate><value>2003-11-03</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>10000</value></transactionShares><transactionPricePerShare><value>17.7925</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>50195</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndire
ctOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Common Stock, $0.01 par value</value></securityTitle><transactionDate><value>2003-11-04</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>10000</value></transactionShares><transactionPricePerShare><value>19.1146</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>40195</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><f
ootnotes/><remarks/><ownerSignature><signatureName>Douglas A. Batt, Attorney-in-Fact</signatureName><signatureDate>2003-11-05</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----