Bob Bryan (born on April 29, 1978) in Camarillo, California is an American male professional tennis player. Bob stands 6'4" tall, weighs 202 lbs and plays left handed. He turned Pro in 1998.
Together with his twin brother Mike he has been very successful in doubles. He has won 24 titles, including two Grand Slam titles, 2003 French Open and 2005 US Open. In 2005, he and Mike made it to the finals of all the 4 Grand Slam tournaments, only the second time such a feat has been achieved in the Open era. The Bryan Brothers are currently seeded #1 in the ATP. Twice they were No. 1 team at the end of a season; in 2004 and 2005.
In January 2006 they won their first Australian Open men's doubles title. In their third final, they defeated Martin Damm and Leander Paes (4-6, 6-3, 6-4).