| Acronym | Definition |
|---|
| MGS➣Metal Gear Solid |
| MGS➣Ministry of Government Services (Ontario, Canada) |
| MGS➣Mars Global Surveyor |
| MGS➣Microsoft Game Studios |
| MGS➣Manitoba Genealogical Society (Canada) |
| MGS➣Machine Gun System |
| MGS➣Master Gunnery Sergeant (USMC) |
| MGS➣Movimento Giovanile Salesiano (Italian youth movement) |
| MGS➣Magnetschwebebahn (German: Magnetic Hovercraft Railway) |
| MGS➣Malaysian Government Securities |
| MGS➣Modified Gram-Schmidt (algorithm) |
| MGS➣Manchester Grammar School |
| MGS➣Magnesium Sulfide |
| MGS➣Magic Game Station |
| MGS➣Media Gateway Switch |
| MGS➣Media Gateway Server |
| MGS➣Mud Gas Separator (oil engineering) |
| MGS➣Marine Geophysical Survey |
| MGS➣Maryland Geological Survey |
| MGS➣Minnesota Geological Survey |
| MGS➣Middleton Grange School (New Zealand) |
| MGS➣Maidstone Grammar School (UK) |
| MGS➣Methodist Girls' School (Singapore) |
| MGS➣Monster Government Solutions (work staffing) |
| MGS➣Matching Grant Scheme (various organizations) |
| MGS➣Melbourne Grammar School (Victoria, Australia) |
| MGS➣Mobile Ground System (US DoD) |
| MGS➣Missile Guidance Set |
| MGS➣Molecular Genetics of Schizophrenia |
| MGS➣Master of Gerontological Studies (Miami University; Ohio) |
| MGS➣Mediterranean Garden Society |
| MGS➣Metallurgical Grade Silicon |
| MGS➣Medical Gas Services (Phoenix, AZ) |
| MGS➣Meckel-Gruber Syndrome |
| MGS➣McMurdo Ground Station |
| MGS➣Mutation Generation System (Finnzymes Oy; Finland) |
| MGS➣Modern Grid Strategy |
| MGS➣Mild Grade Steel |
| MGS➣Mobile Ground Station |
| MGS➣Mentone Grammar School (Melbourne, Australia) |
| MGS➣Minnesota Gerontological Society (Saint Paul, MN) |
| MGS➣Mission Ground Station |
| MGS➣Medium Grade Service |
| MGS➣Marriott Global Source |
| MGS➣Miscellaneous General Service |
| MGS➣Microsoft Global Summit |
| MGS➣Mayo Graduate School of Medicine |
| MGS➣Marine Graphics System |
| MGS➣Mobile Guns System |
| MGS➣Mat Ground Surfacing |
| MGS➣Mobile GIS System |
| MGS➣Micro-Gyroscopic System |
| MGS➣Mitsubishi Generator Set |
| MGS➣Multimedia Graphic Solutions |