| Acronym | Definition |
|---|
| MGC | Mammalian Gene Collection |
| MGC | Media Gateway Controller |
| MGC | Machine Gun Corps (British Army; UK) |
| MGC | Mitsubishi Gas Chemical (Japan) |
| MGC | Middle Georgia College |
| MGC | Mini Golf Course (various locations) |
| MGC | Media Catalog |
| MGC | Mobile Game Conference |
| MGC | Medical Genetics Center (various locations) |
| MGC | Marlborough Girls College (New Zealand) |
| MGC | Middleware for Grid Computing (workshop) |
| MGC | Manual Gain Control |
| MGC | Mississippi Gaming Commission |
| MGC | Museums and Galleries Commission (UK government) |
| MGC | Michigan City, Indiana (Airport Code) |
| MGC | Mountaineer Gas Company (West Virginia) |
| MGC | Midtown Greenway Coalition (Minneapolis, MN) |
| MGC | Manufactured Goods Collection |
| MGC | Mark G. Cappitella (puzzles) |
| MGC | Mary Graydon Center (American University, Washington, DC) |
| MGC | Millennium Galaxy Catalogue (astronomical survey project) |
| MGC | Machinable Glass Ceramic |
| MGC | My Gun Collection (software) |
| MGC | Marriage Guidance Council (various locations) |
| MGC | Marywood Girls College Lagos |
| MGC | Mutuelle Générale des Cheminots (French) |
| MGC | Multinucleated Giant Cell (histopathology) |
| MGC | Midwest Geometry Conference (mathematics) |
| MGC | Missile Guidance Computer |
| MGC | Megacolon, Aganglionic |
| MGC | Make Good Choices |
| MGC | Modified Guaranteed Contract |
| MGC | Mature Gamers Club (gaming community) |
| MGC | Megalocornea |
| MGC | Monterez Golf Club (Malaysia) |
| MGC | Machine Gun Corporation (Japan) |
| MGC | Magische Cirkel Gent |
| MGC | Medium Gas Carrier |
| MGC | Maimonides Geriatric Centre (Montreal, Quebec, Canada) |
| MGC | Master Group Connector |
| MGC | Mollymook Golf Club (Ulladulla, Australia NSW) |
| MGC | Multicast Group Context |
| MGC | Movie Gift Card |
| MGC | Mafia Gaming Crew (gaming clan) |
| MGC | Medium Graph Class |
| MGC | Multiple Gray Code |
| MGC | Minature Gold Coin |