Clayton James Fettell (born 29 May 1986 in Wollongong, New South Wales) is an Australian professional triathlete who races primarily in long distance triathlon events.
Clayton is from a family of six with three other siblings (Kurtis, Paige and Mason).
Clayton spent his upbringing competing in all different sports, water polo, swimming, triathlon, soccer, surf life saving, running and cycling with national success in water polo.
When Clayton was eighteen he suffered multiple retinal detachments preventing him from further playing contact sport, ruling out a career in water polo.
Clayton won his first Australian u/23 triathlon title in 2008 and has since gone on to win 70.3 races around the world.