The 2012 Mr. Olympia contest was an IFBB professional bodybuilding competition and the feature event of Joe Weider's Olympia Fitness & Performance Weekend 2012 held September 27–30, 2012^[1] at the Las Vegas Convention Center and Orleans Arena in Las Vegas, Nevada. It was the 48th Mr. Olympia competition. Other events at the exhibition included the 212 Olympia Showdown, Ms. Olympia, Fitness Olympia, and Figure Olympia contests. The documentary film Generation Iron was filmed while following several Olympia contestants as they prepared for this competition.

A total prize pool of $650,000 was awarded.

Place	Prize	Name	Country	1+2	4	Points
1	$250,000[2]	Phil Heath		5	5	10
2	$100,000	Kai Greene		10	10	20
3	$75,000	Shawn Rhoden		15	16	31
4	$50,000	Dexter Jackson		20	20	40
5	$40,000	Branch Warren		25	31	56
6	$30,000	Dennis Wolf		35	24	59
7	$18,000	Toney Freeman		30	34	64
8	$17,000	Evan Centopani		42	40	82
9	$16,000	Johnnie O. Jackson		45	46	91
10	$14,000	Lionel Beyeke		51	52	103
11	$4,000	Ben Pakulski		54	55	109
12	$4,000	Roelly Winklaar		62	62	124
13	$4,000	Ronny Rockel		63	67	130
14	$4,000	Essa Obaid		72	65	137
15	$4,000	Hidetada Yamagishi		74	75	149
16	$2,000	Bill Wilmore		74	76	150
17	$2,000	Baitollah Abbaspour		80	80	160
17	$2,000	Fred Smalls		80	80	160
17	$2,000	Michael Kefalianos		80	80	160

• Phil Heath won his second consecutive IFBB Mr. Olympia title ^[3]
• Kai Greene placed second, his best ever showing after finishing third in the 2011 Mr. Olympia contest
• Evan Centopani placed eighth in his Mr. Olympia debut
• Toney Freeman, at the age of 46 years, finished in seventh place
• Jay Cutler, four-time Mr. Olympia, could not compete after undergoing surgery for a torn left bicep

• 2012 Ms. Olympia

• Mr. Olympia
• The 2012 Mr. Olympia
• 2012 Mr. Olympia Judging Finals (Video)