| Tommy Hannan | |
| Full Name: | Thomas G. Hannan |
| Nicknames: | "Tommy" |
| Birth Date: | January 14, 1980 |
| Birth Place: | Baltimore, Maryland, U.S. |
| Height: | 6 ft 2 in |
| Weight: | 201 lb |
| Strokes: | Butterfly |
| Collegeteam: | University of Texas |
| Show-Medals: | yes |
Thomas G. Hannan (born January 14, 1980) is an American former competition swimmer and Olympic gold medalist.
Hannan won gold medals at the 1999 World University Games and the Swimming at the 2000 Summer Olympics.[1] At the 2003 Pan American Games he served as the team captain.
Hannan was born in Baltimore, Maryland, and graduate from Mount Saint Joseph High School in Baltimore. He swam for Eagle Swim Team, EST, for a considerably long amount of time. He attended the University of Texas at Austin, where he helped the Texas Longhorns swimming and diving team win three NCAA national team championships (2000, 2001, 2002). He was part of an NCAA champion 4×100-meter medley relay team, and a team that set a new American record in the 4×100-meter freestyle relay while winning the NCAA championship. He graduated from the University of Texas in 2003.
He later served as the assistant swimming coach for the Washington Huskies at the University of Washington.[2] He now resides in Seattle, Washington, and coaches the Power and National groups for KING Aquatic Club.