Jay Gould II (September 1, 1888 – January 26, 1935) was an American real tennis player and a grandson of the railroad magnate Jay Gould. He was the world champion (1914–1916) and the Olympic gold medalist (London, 1908, then under the name jeu de paume). He held the U.S. Amateur Championship title continuously from 1906–1925, winning 18 times (no tournaments were held during the U.S. involvement in World War I). During the same period, he never lost a set to an American amateur, and lost only one singles match, to English champion E.M. Baerlein. The court built for him by his father at the family's Georgian Court estate was restored in 2005. Jay Gould II is the great-great-uncle of US Olympic cyclist Georgia Gould, who qualified to race in the London 2012 Olympiad.