Tags: Swimmer.
Thomas G. Hannan (born January 14 1980) is an American former competition swimmer and Olympic gold medalist. He won gold medals at the 1999 World University Games and the 2000 Olympic Games. At the 2003 Pan American Games he served as the team captain.Hannan a graduate from Mount Saint Joseph College attended the University of Texas at Austin where he helped win three NCAA national team championships (2000 2001 2002).