Gina Grain (born June 16, 1974 in Lachine, Quebec) is a Canadian retired professional road and track cyclist. She won a silver medal in women' scratch at the 2006 UCI Track Cycling World Championships in Bordeaux, France, and later represented her nation Canada at the 2008 Summer Olympics. Before retiring to focus on her personal life and kinesiology career and in 2010, Grain rode with a large number of U.S. and Canadian road racing teams, in addition to her short stint with the Hong Kong-registered Giant Pro Cycling in 2006.