Swimmers at the 1948 Summer Olympics

Edwin Fisher Gilbert (June 22, 1929 – November 7, 2020) was an American competition swimmer who represented the United States at the 1948 Summer Olympics in London. He competed for the gold medal-winning U.S. team in the qualifying heats of the men's 4×200-meter freestyle relay. Gilbert did not receive a medal under the Olympic swimming rules in effect in 1948; only relay swimmers who competed in the event final were medal-eligible.

Alfred Nakache (1915–1983) was a Jewish French swimmer and water polo player. A member of the French team for the 1936 Berlin Summer Olympic Games, he also swam in the first post-war Summer Olympics in London in 1948. He and Ben Helfgott are the only known Jewish athletes to have competed in the Olympics after surviving the Holocaust.

Georges Vallerey Jr. (21 October 1927 – 4 October 1954) was a French swimmer, born in Amiens, who competed in the 1948 Summer Olympics.