<SEC-DOCUMENT>0001047469-19-001682-index.html : 20190327
<SEC-HEADER>0001047469-19-001682.hdr.sgml : 20190327
<ACCEPTANCE-DATETIME>20190327160100
ACCESSION NUMBER:		0001047469-19-001682
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		9
CONFORMED PERIOD OF REPORT:	20190509
FILED AS OF DATE:		20190327
DATE AS OF CHANGE:		20190327
EFFECTIVENESS DATE:		20190327

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CORPORATE OFFICE PROPERTIES TRUST
		CENTRAL INDEX KEY:			0000860546
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				232947217
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14023
		FILM NUMBER:		19708405

	BUSINESS ADDRESS:	
		STREET 1:		6711 COLUMBIA GATEWAY DRIVE
		STREET 2:		SUITE 300
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046
		BUSINESS PHONE:		4432855400

	MAIL ADDRESS:	
		STREET 1:		6711 COLUMBIA GATEWAY DRIVE
		STREET 2:		SUITE 300
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CORPORATE OFFICE PROPERTIES TRUST INC
		DATE OF NAME CHANGE:	19980105

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROYALE INVESTMENTS INC
		DATE OF NAME CHANGE:	19930328

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROYALE REIT INC
		DATE OF NAME CHANGE:	19600201
</SEC-HEADER>
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<TYPE>DEF 14A
<SEQUENCE>1
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<TEXT>
Document 1 - file: a2238162zdef14a.htm

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<SEQUENCE>2
<FILENAME>g160696.jpg
<DESCRIPTION>G160696.JPG
<TEXT>
Document 2 - file: g160696.jpg

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<SEQUENCE>3
<FILENAME>g334099.jpg
<DESCRIPTION>G334099.JPG
<TEXT>
Document 3 - file: g334099.jpg

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<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g911046.jpg
<DESCRIPTION>G911046.JPG
<TEXT>
Document 4 - file: g911046.jpg

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<FILENAME>g526500.jpg
<DESCRIPTION>G526500.JPG
<TEXT>
Document 5 - file: g526500.jpg

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<SEQUENCE>6
<FILENAME>g657700.jpg
<DESCRIPTION>G657700.JPG
<TEXT>
Document 6 - file: g657700.jpg

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<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g160633.jpg
<DESCRIPTION>G160633.JPG
<TEXT>
Document 7 - file: g160633.jpg

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<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g25382bii001.gif
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<TEXT>
Document 8 - file: g25382bii001.gif

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<SEQUENCE>9
<FILENAME>g25382bii002.gif
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<TEXT>
Document 9 - file: g25382bii002.gif

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