Allison Ann Higson now Allison Cavanaugh (born March 13, 1973 in Mississauga, Ontario) is a former international breaststroke and freestyle swimmer from Canada, who won the bronze medal with the Women's 4x100 Medley Relay Team at the 1988 Summer Olympics in Seoul, South Korea, together with Andrea Nugent, Jane Kerr, and Lori Melien. At the 1986 Commonwealth Games in Edinburgh, Higson won gold medals in the the women's 100-metre and 200-metre breaststroke, both in Games Record time. She briefly held the women's 200-metre breaststroke world record in 1988.