| MAGB | Make America Great Books 
| Others |
| MAGB | Maltsters' Association of Great Britain
| Others |
| MAGC | Make A Green Choice
| Others |
| MAGC | Michigan Association for Gifted Children
| Others |
| MAGC | Michigan Association of Genetic Counselors
| Others |
| MAGC | Mid America Guitar Camp
| Others |
| MAGC | Minnesota Association of Government Communicators
| Others |
| MAGC | Mississippi Association for Gifted Children
| Others |
| MAGD | Massachusetts Academy of General Dentistry
| Others |
| MAGD | Master of the Academy of General Dentistry
| Others |
| MAGD | Masters in the Academy of General Dentistry
| Others |
| MAGD | Media Arts Game Development
| Others |
| MAGD | Michigan Academy of General Dentistry
| Others |
| MAGDRL | Mid-Atlantic Great Dane Rescue League
| Others |
| MAGE | Mage Adventure Game Engine
| Others |
| MAGE | Magic Another Game Engine
| Others |
| MAGE | Magic Arts Of Good And Evil
| Others |
| MAGE | Make A Game Experience
| Others |
| MAGE | Management of Accounts for Georgia Tech Environments
| Others |
| MAGE | Marburg Ad-hoc Grid Environment
| Others |
| MAGE | Marine Aerosol and Gas Exchange
| Others |
| MAGE | Mathematical Art Generating Engine
| Others |
| MAGE | Mechanical Aerospace Ground Equipment
| Others |
| MAGE | Melanoma AntiGEn
| Others |
| MAGE | Michigan Alliance For Gifted Education
| Others |
| MAGE | Michigan Association Of Governmental Employees
| Others |
| MAGE | Mildly Advanced Graphics Extensions
| Others |
| MAGE | Minnesota Alliance For Geographic Education
| Others |
| MAGE | Morgan And Grand Emitter
| Others |
| MAGE | Multi Attribute Graph Engine
| Others |
| MAGE | Music Anime Gaming and Entertainment
| Others |
| MAGEC | MAGnetic Expansion Control
| Others |
| MAGENTA | Multifunctional Algorithm for General Purpose Encryption and Network Telecommunication Applications
| Others |
| MAGESTIC | Multiplexed Accurate Genome Editing with Short, Trackable, Integrated Cellular barcodes
| Others |
| MAGFil | Manappuram General Finance Limited
| Others |
| MAGFO | Make America Great For Once
| Others |
| MAGFO | Ministerio Agropecuario y Forestal
| Others |
| Maggi | named after its founder Julius Maggi
| Others |
| MAGGIE | Mid America Gender Group Information Exchange
| Others |
| MAGGOT | Make America Great Get Out Trump
| Others |
| MAGGOT | Medically Able, Go Get Other Transportation
| Others |
| MAGH | Medical Anthropology and Global Health
| Others |
| MAGI | Mahtomedi Area Green Initiative
| Others |
| MAGI | Maize Assembled Genomic Island
| Others |
| MAGI | Making A Godly Impact
| Others |
| MAGI | Male Accessory Gland Infection
| Others |
| MAGI | Manufacturing Action Group Inc
| Others |
| MAGI | Mature Adult Group Involvement
| Others |
| MAGI | Merging Affected Genes Into
| Others |
| MAGI | Model Agreement Group Initiative
| Others |