Craig Alexander (born 22 June 1973) is an Australian triathlete who is the 2008, 2009 & 2011 Ironman Triathlon World Champion.

This win qualified him for the Ironman World Championships in Hawaii the following year (2007), where he finished 2nd in his debut race in the lava fields.

In 2008 and 2009, Alexander went on to win the Ironman World Championships, becoming only the 4th male athlete in history to defend the title.

[citation needed] With his 2011 victory in Hawaii, Alexander also broke the previous course record which had stood for 15 years and became, at the age of 38, the oldest athlete ever to win the IM World Championship title.

[6] Alexander attended Ashfield Boys High School and went on to study Anatomy and Physiology at university.