Leslie George Rich (December 29, 1886 – October 1969) was an American competition swimmer who represented the United States at the 1908 Summer Olympics in London. Rich won a bronze medal as a member of the third-place U.S. team in the men's 4×200-meter freestyle relay, together with teammates Harry Hebner, Leo Goodwin and Charles Daniels. Individually, he finished fourth in the men's 100-meter freestyle.