<SEC-DOCUMENT>0000030167-17-000003-index.html : 20170127
<SEC-HEADER>0000030167-17-000003.hdr.sgml : 20170127
<ACCEPTANCE-DATETIME>20170127093710
ACCESSION NUMBER:		0000030167-17-000003
CONFORMED SUBMISSION TYPE:	NSAR-A
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20161130
FILED AS OF DATE:		20170127
DATE AS OF CHANGE:		20170127
EFFECTIVENESS DATE:		20170127

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:		NSAR-A
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-02192
		FILM NUMBER:		17551850

	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>NSAR-A
<SEQUENCE>1
<FILENAME>answer.fil
<DESCRIPTION>SEMI-ANNUANL NSAR
<TEXT>
Document 1 - file: answer.fil

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77I NEW SECUR
<SEQUENCE>2
<FILENAME>subitem77i.htm
<DESCRIPTION>TERMS OF NEW OR AMENDED SECURITIES
<TEXT>
Document 2 - file: subitem77i.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q1 OTHR EXHB
<SEQUENCE>3
<FILENAME>item77q1.htm
<DESCRIPTION>SUB-ITEM 77Q1
<TEXT>
Document 3 - file: item77q1.htm

</DOCUMENT>
</SEC-DOCUMENT>