<SEC-DOCUMENT>0000819940-18-000018-index.html : 20180227
<SEC-HEADER>0000819940-18-000018.hdr.sgml : 20180227
<ACCEPTANCE-DATETIME>20180227150747
ACCESSION NUMBER:		0000819940-18-000018
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		10
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180227
DATE AS OF CHANGE:		20180227
EFFECTIVENESS DATE:		20180227

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DREYFUS INVESTMENT FUNDS
		CENTRAL INDEX KEY:			0000799295
		IRS NUMBER:				043106135
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		NSAR-B
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04813
		FILM NUMBER:		18644646

	BUSINESS ADDRESS:	
		STREET 1:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		212-922-6000

	MAIL ADDRESS:	
		STREET 1:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MELLON INSTITUTIONAL FUNDS INVESTMENT TRUST
		DATE OF NAME CHANGE:	20030707

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STANDISH AYER & WOOD INVESTMENT TRUST
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000799295
<SERIES-ID>S000011502
<SERIES-NAME>Dreyfus/Standish Global Fixed Income Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000031763
<CLASS-CONTRACT-NAME>Dreyfus/Standish Global Fixed Income Fund - Class I
<CLASS-CONTRACT-TICKER-SYMBOL>SDGIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000081694
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>DHGAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000081695
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>DHGCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000130461
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>DSDYX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-B
<SEQUENCE>1
<FILENAME>answer.fil
<DESCRIPTION>ANNUAL FORM N-SAR
<TEXT>
Document 1 - file: answer.fil

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>2
<FILENAME>acctlr6923-22018.htm
<DESCRIPTION>ACCOUNTANT'S REPORT ON INTERNAL CONTROL
<TEXT>
Document 2 - file: acctlr6923-22018.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77I NEW SECUR
<SEQUENCE>3
<FILENAME>subitem77i6923-22018.htm
<DESCRIPTION>TERMS OF NEW OR AMENDED SECURITIES
<TEXT>
Document 3 - file: subitem77i6923-22018.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>4
<FILENAME>rule10f36923-22018.htm
<DESCRIPTION>RULE 10F-3
<TEXT>
Document 4 - file: rule10f36923-22018.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q1 OTHR EXHB
<SEQUENCE>5
<FILENAME>subitem77qid6923-22018.htm
<DESCRIPTION>ITEM Q1D
<TEXT>
Document 5 - file: subitem77qid6923-22018.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>rule10f36923-22018x2x1.jpg
<TEXT>
Document 6 - file: rule10f36923-22018x2x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>rule10f36923-22018x3x1.jpg
<TEXT>
Document 7 - file: rule10f36923-22018x3x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>rule10f36923-22018x5x1.jpg
<TEXT>
Document 8 - file: rule10f36923-22018x5x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>rule10f36923-22018x6x1.jpg
<TEXT>
Document 9 - file: rule10f36923-22018x6x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>rule10f36923-22018x7x1.jpg
<TEXT>
Document 10 - file: rule10f36923-22018x7x1.jpg

</DOCUMENT>
</SEC-DOCUMENT>