| MGC | Machinable Glass Ceramic 
| Others |
| MGC | Machine Gun Corps
| Others |
| MGC | Maharishi Global Construction
| Others |
| MGC | Make Good Choices
| Others |
| MGC | Malaysian Grandis Club
| Others |
| MGC | Male Genital Cutting
| Others |
| MGC | Mammalian Gene Collection
| Others |
| MGC | Manual Gain Control
| Others |
| MGC | Manufactured Goods Collection
| Others |
| MGC | Marlborough Girls College
| Others |
| MGC | Marlborough Girls' College
| Others |
| MGC | Maserati Gran Cabrio
| Others |
| MGC | Massachusetts Gaming Commission
| Others |
| MGC | Massachusetts Genealogical Council
| Others |
| MGC | Massachusetts Genealogical Council's
| Others |
| MGC | Massachusetts Gymnastics Center
| Others |
| MGC | Master's in Genetic Counseling
| Others |
| MGC | Maximum Gradient Component
| Others |
| MGC | Media Gateway Controller
| Others |
| MGC | Medical Genetics Center
| Others |
| MGC | Medical Genetics Centre
| Others |
| MGC | Medium Gas Carrier
| Others |
| MGC | Mekong-Ganga Cooperation
| Others |
| MGC | Melbourne Girls College
| Others |
| MGC | Melbourne Girls' College
| Others |
| MGC | Mennonite General Conference
| Others |
| MGC | Mesoporous Graphitic Carbon
| Others |
| MGC | Michael Gordon Clifford
| Others |
| MGC | Michigan City Municipal Airport
| Others |
| MGC | Michigan City Municipal Airport, Michigan City, Indiana USA
| Others |
| MGC | Michigan Genealogical Council
| Others |
| MGC | Micky General Contractors
| Others |
| MGC | Mid Georgia Courier
| Others |
| MGC | Middle Georgia College
| Others |
| MGC | Middleware for Grid Computing
| Others |
| MGC | Midwest Gaming Classic
| Others |
| MGC | Milliken Gospel Church
| Others |
| MGC | Minimum Ground Clearance
| Others |
| MGC | Mircom Group of Companies
| Others |
| MGC | Mississippi Gaming Commission
| Others |
| MGC | Mississippi Gulf Coast
| Others |
| MGC | Missouri Gaming Commission
| Others |
| MGC | Misteer Gaming Clan
| Others |
| MGC | Mitsubishi Galant Community
| Others |
| MGC | Mitsubishi Gas Chemical
| Others |
| MGC | Mitsubishi Grandis Club
| Others |
| MGC | Mitsubishi Grandis Community
| Others |
| MGC | Mobile Game Conference
| Others |
| MGC | Model Gun Corporation
| Others |
| MGC | Moonshine Guns and Chaw
| Others |
| MGC | Morris Garages Type C
| Others |
| MGC | Mortgage Gambling Crooks
| Others |
| MGC | Mother of Good Counsel
| Others |
| MGC | Motorised Golf Cart
| Others |
| MGC | Mouse Genetics Core
| Others |
| MGC | Mouse Genome Conference
| Others |
| MGC | Mugat Railway Station
| Others |
| MGC | Mulit Generational Center
| Others |
| MGC | Multi Gamers Community
| Others |
| MGC | Multicultural Greek Council
| Others |
| MGC | Multicultural Greek Council's
| Others |
| MGC | Multinuclear Giant Cells
| Others |
| MGC | Multipoint Gateway And Control
| Others |
| MGC | Multiscale Graph Correlation
| Others |
| MGC | Museums and Galleries Commission
| Others |
| MGC | My Globe ConnectPunta
| Others |