Maxwell Douglas McNab (June 21, 1924 – September 2, 2007) was a Canadian professional ice hockey player, coach, and National Hockey League (NHL) general manager. He played in the NHL with the Detroit Red Wings between 1947 and 1951, winning the Stanley Cup with them in 1950. The rest of his playing career, which lasted from 1945 to 1959, was spent in various minor leagues.