Thomas Fitzgerald Dolan (born September 15, 1975) is an American former competition swimmer, two-time Olympic champion, and former world record-holder.

He attended the University of Michigan, Ann Arbor, where he swam for coach Jon Urbanchek's Michigan Wolverines swimming and diving team in National Collegiate Athletic Association (NCAA) competition from 1994 to 1997.

[3] At the 1996 Summer Olympics in Atlanta, Georgia, he won a gold medal in the men's 400-meter individual medley, finishing with a time 4:14.90.

[3][4] He also competed in the men's 200-meter individual medley, placing seventh in the event final with a time 2:03.89.

[3][5] Four years later at the 2000 Summer Olympics in Sydney, Australia, Dolan again won a gold medal in the men's 400-meter individual medley, and setting a new world record of 4:11.76 in the final.