<SEC-DOCUMENT>0001193125-15-261349-index.html : 20150723
<SEC-HEADER>0001193125-15-261349.hdr.sgml : 20150723
<ACCEPTANCE-DATETIME>20150723172408
ACCESSION NUMBER:		0001193125-15-261349
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20150723
DATE AS OF CHANGE:		20150723

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALCOA INC.
		CENTRAL INDEX KEY:			0000004281
		STANDARD INDUSTRIAL CLASSIFICATION:	ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS [3350]
		IRS NUMBER:				250317820
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-197371
		FILM NUMBER:		151002979

	BUSINESS ADDRESS:	
		STREET 1:		390 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022-4608
		BUSINESS PHONE:		2128362732

	MAIL ADDRESS:	
		STREET 1:		390 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022-4608

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALCOA INC
		DATE OF NAME CHANGE:	19990105

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALUMINUM CO OF AMERICA
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B5
<SEQUENCE>1
<FILENAME>d23107d424b5.htm
<DESCRIPTION>PROSPECTUS SUPPLEMENT
<TEXT>
Document 1 - file: d23107d424b5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g23107g68t38.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g23107g68t38.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g23107g88f34.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g23107g88f34.jpg

</DOCUMENT>
</SEC-DOCUMENT>