Timothy Andrew Shaw (born 8 November 1957) is a former Olympic medal-winning swimmer and water polo player from the United States. He swam at the 1976 Montreal Olympic Games and played on the USA water polo team at the 1984 Los Angeles Games. He is one of a handful of athletes to win Olympic medals in two different sports. He was named World Swimmer of the Year in 1974 and 1975 by Swimming World Magazine.
In 1974 in space of four days he broke Mark Spitz's 200m freestyle world record, Rick Demont's 400m freestyle world record and Steve Holland's 1500m freestyle world record.
He appeared on the cover of Sports Illustrated magazine on 4 August 1975, after receiving the FINA Prize Eminence Award in 1974, representative of the greatest contribution to world aquatics; being named World Swimmer of the Year for two years running, 1974 and 1975; and winning the Sullivan Award in 1975 as the most outstanding amateur athlete in the United States after having won three gold medals at the 1975 World Swimming Championships.
Due to an illness, he won a silver medal in the 400m freestyle in a gutsy effort. He could not compete four years later when the US led the 1980 Moscow Olympics boycott. Shaw further was a member of the 1984 USA Olympic water polo team that was undefeated in Olympic competition but was awarded the silver medal because the Yugoslav team, with an identical record, scored four more goals overall.
Between 1974 and 1984, Shaw won 2 Olympic silver medals; 3 World Championships; 7 National U.S. Amateur Athletic Union titles; and 3 U.S. National Collegiate Athletic Association Championships. He later coached California State University Long Beach.