Gwen Leticia Wallace (born 10 August 1935) is a former Australian athletics competitor. During the 1954 British Empire and Commonwealth Games in Vancouver, she won a gold medal in the 4 à110 yards relay, and also competed in the long jump, high jump and 80 metres hurdles events. She was also the 1953âÂÂ1954 national champion in the 80 metres hurdles.
Born in New South Wales, Wallace was married to Test cricket batsman Norm O'Neill from 1958 until his death in 2008. The couple had three children, including first-class cricketer Mark O'Neill.