Marty O'Donnell (born February 5, 1973, in Glace Bay, Nova Scotia) is a retired boxer, who represented Canada at the 1992 Summer Olympics in Barcelona, Spain. At the Olympics, O'Donnell was defeated in the first round of the flyweight division (– 51 kg) by Australia's Robbie Peden. At the 1998 Commonwealth Games, he won a silver medal in the Featherweight division. O'Donnell turned pro and fought for the vacant Canadian Light Welterweight Title versus at the in Winnipeg, Manitoba on Sunday March 17, 2002.