Lawrence Samuel Molyneaux (July 8, 1912 – May 24, 1966) was a Canadian professional ice hockey player who played 45 games in the National Hockey League for the New York Rangers during the 1937–38 and 1938–39 seasons. The rest of his career, which lasted from 1932 to 1941, was spent in the minor leagues. He was born in Sutton West, Ontario. He died in 1966 in Toronto, Ontario.