Gregory James Joly (born May 30, 1954 in Rocky Mountain House, Alberta and raised in Calgary, Alberta) is a retired former professional ice hockey player who was drafted number one overall in the 1974 NHL Amateur Draft by the Washington Capitals from the Regina Pats. He played 365 NHL games over the course of his nine-year career for Washington (1974–1976) and the Detroit Red Wings (1976–1983).
He now works in the sports insurance industry in upstate New York.