Christopher John McCormack (born 4 April 1973), also known as Macca, is an Australian triathlete. McCormack is a two-time winner of the Ironman World Championship, winning the titles in 2007 and 2010. He is also the winner of the 1997 International Triathlon Union (ITU) World Cup Series, the 1997 Triathlon World Championships and the 2012 Long Distance World Championships making him a four-time triathlon world champion.
