| Acronym | Definition |
|---|
| MGO➣Metal Gear Online (gaming |
| MGO➣Magnesium Oxide (chemistry) |
| MGO➣Marine Gas Oil (marine fuel) |
| MGO➣Message Overwriting |
| MGO➣Magneto Optical |
| MGO➣Machine Gun Optic (US Army) |
| MGO➣Master General of the Ordnance (British military position) |
| MGO➣Main Geophysical Observatory (Russia) |
| MGO➣Mandatory General Offer |
| MGO➣Military Government Officer |
| MGO➣Minimum Generator Operation |
| MGO➣Music Goes On |
| MGO➣Materials Global Operations (General Motors) |