Gwen Leticia Wallace[1] (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 × 110 yards relay, and also competed in the long jump, high jump and 80 metres hurdles events.

[2][3][4] 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.

This biographical article relating to Australian athletics is a stub.