<SEC-DOCUMENT>0001193125-21-069302-index.html : 20210304
<SEC-HEADER>0001193125-21-069302.hdr.sgml : 20210304
<ACCEPTANCE-DATETIME>20210304144000
ACCESSION NUMBER:		0001193125-21-069302
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		17
CONFORMED PERIOD OF REPORT:	20201231
FILED AS OF DATE:		20210304
DATE AS OF CHANGE:		20210304
EFFECTIVENESS DATE:		20210304

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Natixis Funds Trust I
		CENTRAL INDEX KEY:			0000770540
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		N-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04323
		FILM NUMBER:		21713728

	BUSINESS ADDRESS:	
		STREET 1:		888 BOYLSTON STREET
		STREET 2:		8TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		617-449-2810

	MAIL ADDRESS:	
		STREET 1:		888 BOYLSTON STREET
		STREET 2:		8TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IXIS Advisor Funds Trust I
		DATE OF NAME CHANGE:	20050502

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CDC NVEST FUNDS TRUST I
		DATE OF NAME CHANGE:	20010503

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NVEST FUNDS TRUST I
		DATE OF NAME CHANGE:	20000202
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000770540
<SERIES-ID>S000006658
<SERIES-NAME>Natixis U.S. Equity Opportunities Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018161
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>NEFSX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018163
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>NECCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018164
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>NESYX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000190732
<CLASS-CONTRACT-NAME>Class N
<CLASS-CONTRACT-TICKER-SYMBOL>NESNX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000770540
<SERIES-ID>S000006661
<SERIES-NAME>Vaughan Nelson Small Cap Value Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018172
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>NEFJX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018174
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>NEJCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000069268
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>NEJYX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000190733
<CLASS-CONTRACT-NAME>Class N
<CLASS-CONTRACT-TICKER-SYMBOL>VSCNX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000770540
<SERIES-ID>S000030606
<SERIES-NAME>Natixis Oakmark International Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000094872
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>NOIAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000094873
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>NOICX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000190734
<CLASS-CONTRACT-NAME>Class N
<CLASS-CONTRACT-TICKER-SYMBOL>NIONX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000190735
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>NOIYX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000770540
<SERIES-ID>S000053352
<SERIES-NAME>Mirova Global Sustainable Equity Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000167845
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>ESGMX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000167846
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>ESGCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000167847
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>ESGYX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000190736
<CLASS-CONTRACT-NAME>Class N
<CLASS-CONTRACT-TICKER-SYMBOL>ESGNX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000770540
<SERIES-ID>S000056426
<SERIES-NAME>Mirova Global Green Bond Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000178444
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>MGGAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000178445
<CLASS-CONTRACT-NAME>Class N
<CLASS-CONTRACT-TICKER-SYMBOL>MGGNX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000178446
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>MGGYX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000770540
<SERIES-ID>S000063873
<SERIES-NAME>Mirova International Sustainable Equity Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000206846
<CLASS-CONTRACT-NAME>Class N
<CLASS-CONTRACT-TICKER-SYMBOL>MRVNX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000206847
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>MRVYX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000206848
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>MRVAX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000770540
<SERIES-ID>S000070329
<SERIES-NAME>Mirova U.S. Sustainable Equity Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000223732
<CLASS-CONTRACT-NAME>Class Y
<CLASS-CONTRACT-TICKER-SYMBOL>MUSYX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000223733
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>MUSAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000223734
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>MUSCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000223735
<CLASS-CONTRACT-NAME>Class N
<CLASS-CONTRACT-TICKER-SYMBOL>MUSNX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSR
<SEQUENCE>1
<FILENAME>d81858dncsr.htm
<DESCRIPTION>NATIXIS FUNDS TRUST I
<TEXT>
Document 1 - file: d81858dncsr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CODE ETH <SEQUENCE>2 <FILENAME>d81858dex99codeeth.htm <DESCRIPTION>CODE OF ETHICS <TEXT> Document 2 - file: d81858dex99codeeth.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CERT <SEQUENCE>3 <FILENAME>d81858dex99cert.htm <DESCRIPTION>SECTION 302 CERTIFICATIONS <TEXT> Document 3 - file: d81858dex99cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.906CERT <SEQUENCE>4 <FILENAME>d81858dex99906cert.htm <DESCRIPTION>SECTION 906 CERTIFICATIONS <TEXT> Document 4 - file: d81858dex99906cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g65189g06h22.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g65189g06h22.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g65189g14v19.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g65189g14v19.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>g65189g22r90.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: g65189g22r90.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>g65189g30c87.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: g65189g30c87.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>g65189g30s39.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: g65189g30s39.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>g65189g38a66.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 10 - file: g65189g38a66.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>g65189g44v19.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 11 - file: g65189g44v19.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>g65189g54t24.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 12 - file: g65189g54t24.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>g65189g65o31.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 13 - file: g65189g65o31.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>g65189g71p24.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 14 - file: g65189g71p24.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>g65189g80m11.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 15 - file: g65189g80m11.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>g65189g88b10.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 16 - file: g65189g88b10.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>g65189g93h10.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 17 - file: g65189g93h10.jpg
</DOCUMENT> </SEC-DOCUMENT>