    <SEC-DOCUMENT>0001031235-21-000019-index.html : 20210624
    <SEC-HEADER>0001031235-21-000019.hdr.sgml : 20210624
    <ACCEPTANCE-DATETIME>20210623213005
    ACCESSION NUMBER:		0001031235-21-000019
    CONFORMED SUBMISSION TYPE:	424B5
    PUBLIC DOCUMENT COUNT:		6
    FILED AS OF DATE:		20210624
    DATE AS OF CHANGE:		20210623

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Global Self Storage, Inc.
    		CENTRAL INDEX KEY:			0001031235
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				133926714
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		424B5
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-227879
    		FILM NUMBER:		211040395

    	BUSINESS ADDRESS:
    		STREET 1:		11 HANOVER SQUARE
    		STREET 2:		12TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10005
    		BUSINESS PHONE:		2127850900

    	MAIL ADDRESS:
    		STREET 1:		11 HANOVER SQUARE
    		STREET 2:		12TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10005

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Self Storage Group, Inc.
    		DATE OF NAME CHANGE:	20131118

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	GLOBAL INCOME FUND, INC.
    		DATE OF NAME CHANGE:	20060215

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	GLOBAL INCOME FUND INC
    		DATE OF NAME CHANGE:	19990830
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>424B5
    <SEQUENCE>1
    <FILENAME>self_prosup.htm
    <TEXT>
    Document 1 - file: self_prosup.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>image0.jpg
    <TEXT>
    Document 2 - file: image0.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>image00001.jpg
    <TEXT>
    Document 3 - file: image00001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>image1.jpg
    <TEXT>
    Document 4 - file: image1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>image2.jpg
    <TEXT>
    Document 5 - file: image2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>image3.jpg
    <TEXT>
    Document 6 - file: image3.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>