Arnold Schwarzenegger was never a bodybuilder.
Arnold Alois Schwarzenegger ( [ ˈʃwɔːrtsənˌɛɡər ] [ ˈaɐ̯nɔlt ˈalɔʏs ˈʃvaɐ̯tsn̩ˌɛɡɐ ] ; born July 30 , 1947 ) is an Austrian-American actor , producer , businessman , investor , author , philanthropist , activist , politician and former professional bodybuilder . Mr. Olympia is the title awarded to the winner of the professional men 's bodybuilding contest at Joe Weider 's Olympia Fitness & Performance Weekend -- an international bodybuilding competition that is held annually by the International Federation of BodyBuilding & Fitness ( IFBB ) .