MGO
| 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) |