2005 Mr. Olympia

The 2005 Mr. Olympia contest was an IFBB professional bodybuilding competition and the feature event of Joe Weider's 2005 Olympia Weekend held October 15–16, 2005 at the Orleans Arena in Las Vegas, Nevada.

Results
The total prize amount given during the exhibition was $711,000, an increase of 32% from 2004. The total prize money for the men's Mr. Olympia was $550,000.

Notable events

 * Ronnie Coleman wins his eighth consecutive Mr. Olympia title, tying with Lee Haney for most wins
 * Gustavo Badell won $50,000 in the Challenge Round.
 * Jay Cutler won $10,000 in the Vyo Tech's Best Wheels.