Guillaume Leblanc, Canadian athlete
Guillaume LeBlanc (born April 14, 1962 in Sept-Îles, Quebec) is a Canadian former athlete who mainly competed in the 20 kilometre walk.
A winner of the 20 km event at the 1989 Jeux de la Francophonie he competed for Canada at the 1992 Summer Olympics held in Barcelona, Spain, where he won the silver medal in the 20 kilometre walk event.