John George "Big Jack" McGill (September 19, 1921 – January 13, 1994) was a Canadian professional ice hockey player.
Born in Edmonton, Alberta, McGill registered 19 points in his first 13 games with the Boston Bruins of the National Hockey League.
He spent parts of two more seasons with the Bruins, finishing the remainder of his career in the AHL and other minor leagues.
In 97 regular season NHL games, McGill recorded 23 goals and 36 assists for 59 points.
This biographical article relating to a Canadian ice hockey centre born in the 1920s is a stub.