<SEC-DOCUMENT>0000030167-16-000040-index.html : 20161013
<SEC-HEADER>0000030167-16-000040.hdr.sgml : 20161013
<ACCEPTANCE-DATETIME>20161013093410
ACCESSION NUMBER:		0000030167-16-000040
CONFORMED SUBMISSION TYPE:	485BPOS
PUBLIC DOCUMENT COUNT:		16
FILED AS OF DATE:		20161013
DATE AS OF CHANGE:		20161013
EFFECTIVENESS DATE:		20161013

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:		485BPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-40341
		FILM NUMBER:		161934167

	BUSINESS ADDRESS:	
		STREET 1:		THE DREYFUS CORPORATION
		STREET 2:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		2129226883

	MAIL ADDRESS:	
		STREET 1:		C/O DREYFUS CORP
		STREET 2:		200 PARK AVENUE, 8TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	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

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:		485BPOS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-02192
		FILM NUMBER:		161934168

	BUSINESS ADDRESS:	
		STREET 1:		THE DREYFUS CORPORATION
		STREET 2:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		2129226883

	MAIL ADDRESS:	
		STREET 1:		C/O DREYFUS CORP
		STREET 2:		200 PARK AVENUE, 8TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	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>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>485BPOS
<SEQUENCE>1
<FILENAME>lp1035.htm
<DESCRIPTION>POST-EFFECTIVE AMENDMENT NO. 77
<TEXT>
Document 1 - file: lp1035.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>2
<FILENAME>ck0000030167-20160928.xsd
<DESCRIPTION>TAXONOMY
<TEXT>
Document 2 - file: ck0000030167-20160928.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.INS
<SEQUENCE>3
<FILENAME>ck0000030167-20160928.xml
<DESCRIPTION>INSTANCE DOCUMENT
<TEXT>
Document 3 - file: ck0000030167-20160928.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>4
<FILENAME>ck0000030167-20160928_cal.xml
<DESCRIPTION>CALCULATION LINKBASE
<TEXT>
Document 4 - file: ck0000030167-20160928_cal.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>5
<FILENAME>ck0000030167-20160928_pre.xml
<DESCRIPTION>PRESENTATION LINKBASE
<TEXT>
Document 5 - file: ck0000030167-20160928_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>6
<FILENAME>ck0000030167-20160928_def.xml
<DESCRIPTION>DEFINITION LINKBASE
<TEXT>
Document 6 - file: ck0000030167-20160928_def.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>7
<FILENAME>ck0000030167-20160928_lab.xml
<DESCRIPTION>LABEL LINKBASE
<TEXT>
Document 7 - file: ck0000030167-20160928_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 9 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>BarChart1.png
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 10 - file: BarChart1.png

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>11
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 11 - file: R2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>12
<FILENAME>R9.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 12 - file: R9.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<FILENAME>R10.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 13 - file: R10.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 14 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>15
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 15 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 17 - file: FilingSummary.html

Document 17 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>19
<FILENAME>0000030167-16-000040-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 19 - file: 0000030167-16-000040-xbrl.zip

</DOCUMENT>
</SEC-DOCUMENT>