is the short form of several words:
MAG may also be an acronym meaning:
- Manchester Airports Group, the largest UK-owned airport group, operating Manchester Airport and three others
- Maricopa Association of Governments, a regional council of governments representing the Phoenix metro area, Arizona, USA
- FN MAG machine gun. MAG stands for Mitrailleuse d'Appui General which translates to 'general purpose machine gun'
- a Magnetic Accelerator Gun, such as a Gauss gun, Railgun or Coilgun
- Massive Action Game, a video game currently in development by Zipper Interactive for the PlayStation 3.
- Maximum Absorbency Garment, a diaper-like garment worn by astronauts during lift-off and spacewalks
- Men's artistic gymnastics
- Memorial Art Gallery, an art museum in Rochester, New York
- Mines Advisory Group, a non-governmental organization (NGO) concerned with removal of debris of war (landmines, unexploded ordnance, etc.)
- Myelin-associated glycoprotein
It may also mean: