Cullen Andrew Jones (born February 29, 1984) is an American former[1] competition swimmer and Olympic gold medalist who specializes in freestyle sprint events.

[2][3] He became an age-group swimmer at Metro Express, a club team at the Jewish Community Center in West Orange, New Jersey under head coach Ed Nessel.

He turned professional in the summer of 2006, after signing with Nike[4] and burst onto the scene shortly after at the 2006 Pan Pacific Swimming Championships where he set a meet record in the 50-meter freestyle with a time of 21.84 seconds.

He also swam a leg (split of 47.96) in the world record breaking 4×100-meter freestyle relay along with Michael Phelps, Neil Walker and Jason Lezak.

At the 2008 Olympic Games in Beijing, China, he won a gold medal in the 4×100-meter freestyle relay in a world record time of 3:08.24 with Michael Phelps, Jason Lezak and Garrett Weber-Gale.