<SEC-DOCUMENT>0001387131-18-002904-index.html : 20180629
<SEC-HEADER>0001387131-18-002904.hdr.sgml : 20180629
<ACCEPTANCE-DATETIME>20180629161201
ACCESSION NUMBER:		0001387131-18-002904
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20180629
DATE AS OF CHANGE:		20180629
EFFECTIVENESS DATE:		20180629

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALAMOS GLOBAL TOTAL RETURN FUND
		CENTRAL INDEX KEY:			0001285650
		IRS NUMBER:				203377281
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-224205
		FILM NUMBER:		18929430

	BUSINESS ADDRESS:	
		STREET 1:		2020 CALAMOS COURT
		STREET 2:		C/O CALAMOS ADVISORS LLC
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563
		BUSINESS PHONE:		6302451046

	MAIL ADDRESS:	
		STREET 1:		2020 CALAMOS COURT
		STREET 2:		C/O CALAMOS ADVISORS LLC
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563
</SEC-HEADER>
<DOCUMENT>
<TYPE>497
<SEQUENCE>1
<FILENAME>cgo-497_062918.htm
<DESCRIPTION>AMENDMENT TO FORM N-2
<TEXT>
Document 1 - file: cgo-497_062918.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>cgo-497_062918img001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: cgo-497_062918img001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>cgosuppimg001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: cgosuppimg001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>logo-img01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: logo-img01.jpg

</DOCUMENT>
</SEC-DOCUMENT>