George Alfred "Al" Leader (December 4, 1903, Barnsley, Manitoba – May 8, 1982) was a Canadian-American ice hockey player, referee, and administrator. He is a member of the Hockey Hall of Fame in the "Builder" category. Leader settled in Seattle, Washington in the 1930s and became involved in hockey as the administrator of the Seattle City League. He worked as a player, referee, and administrator at the city level for several years before organizing the Defense Hockey League in 1940, which involved five teams from Seattle and Portland, Oregon.