<SEC-DOCUMENT>0000030167-17-000023-index.html : 20170428
<SEC-HEADER>0000030167-17-000023.hdr.sgml : 20170428
<ACCEPTANCE-DATETIME>20170428114023
ACCESSION NUMBER:		0000030167-17-000023
CONFORMED SUBMISSION TYPE:	497K
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20170428
DATE AS OF CHANGE:		20170428
EFFECTIVENESS DATE:		20170428

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DREYFUS THIRD CENTURY FUND, INC
		CENTRAL INDEX KEY:			0000030167
		IRS NUMBER:				132691318
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0531

	FILING VALUES:
		FORM TYPE:		497K
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-40341
		FILM NUMBER:		17792852

	BUSINESS ADDRESS:	
		STREET 1:		THE DREYFUS CORPORATION
		STREET 2:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		2129226400

	MAIL ADDRESS:	
		STREET 1:		C/O DREYFUS CORP
		STREET 2:		200 PARK AVENUE, 7TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREYFUS THIRD CENTURY FUND INC
		DATE OF NAME CHANGE:	20081201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREYFUS PREMIER THIRD CENTURY FUND INC
		DATE OF NAME CHANGE:	20020517

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DREYFUS THIRD CENTURY FUND INC
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000030167
<SERIES-ID>S000000095
<SERIES-NAME>DREYFUS THIRD CENTURY FUND INC
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000149
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>DTCAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000151
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>DTCCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000152
<CLASS-CONTRACT-NAME>Class I
<CLASS-CONTRACT-TICKER-SYMBOL>DRTCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000000154
<CLASS-CONTRACT-NAME>Class Z
<CLASS-CONTRACT-TICKER-SYMBOL>DRTHX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000174003
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>DTCYX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>497K
<SEQUENCE>1
<FILENAME>dreyfussustainableuseq-05172.htm
<DESCRIPTION>SUMMARY PROSPECTUS
<TEXT>
Document 1 - file: dreyfussustainableuseq-05172.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>x17042615072900.jpg
<TEXT>
Document 2 - file: x17042615072900.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>x17042615072901.jpg
<TEXT>
Document 3 - file: x17042615072901.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>x17042615072902.jpg
<TEXT>
Document 4 - file: x17042615072902.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>x17042615073000.jpg
<TEXT>
Document 5 - file: x17042615073000.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>x17042615073001.jpg
<TEXT>
Document 6 - file: x17042615073001.jpg

</DOCUMENT>
</SEC-DOCUMENT>