- Games. Abbreviation: GM
- the person who organizes or directs the story or play in a tabletop game, as a role-playing game.
- (in an MMORPG) an employee representative of the game developer who maintains a presence in the online game and may be called by players to resolve technical issues, enforce terms of service, etc.: If someone is being abusive or harassing you, just report him to a Game Master.
