<SEC-DOCUMENT>0001387131-19-001778-index.html : 20190307
<SEC-HEADER>0001387131-19-001778.hdr.sgml : 20190307
<ACCEPTANCE-DATETIME>20190307150158
ACCESSION NUMBER:		0001387131-19-001778
CONFORMED SUBMISSION TYPE:	N-Q
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20190131
FILED AS OF DATE:		20190307
DATE AS OF CHANGE:		20190307
EFFECTIVENESS DATE:		20190307

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALAMOS STRATEGIC TOTAL RETURN FUND
		CENTRAL INDEX KEY:			0001275214
		IRS NUMBER:				043785941
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-Q
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-21484
		FILM NUMBER:		19665553

	BUSINESS ADDRESS:	
		STREET 1:		2020 CALAMOS COURT
		STREET 2:		C/O CALAMOS ADVISORS LLC
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60653
		BUSINESS PHONE:		6302451046

	MAIL ADDRESS:	
		STREET 1:		2020 CALAMOS COURT
		STREET 2:		C/O CALAMOS ADVISORS LLC
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60653
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-Q
<SEQUENCE>1
<FILENAME>csq-nq_013119.htm
<DESCRIPTION>QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS
<TEXT>
Document 1 - file: csq-nq_013119.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>csq-ex99_cert.htm
<DESCRIPTION>CERTIFICATIONS
<TEXT>
Document 2 - file: csq-ex99_cert.htm

</DOCUMENT>
</SEC-DOCUMENT>