| Acronym | Definition |
|---|
| FGO | Fate/Grand Order (role-playing game) |
| FGO | Fate Grand Order (gaming) |
| FGO | Florida Grand Opera |
| FGO | Family Guy Online (TV show) |
| FGO | Field Grade Officer |
| FGO | Fiduciaire Gestion Organisation (French: Trust Management Organization) |
| FGO | Fluides Géophysiques et Océanographie (French: Oceanography and Geophysical Fluid) |
| FGO | Flag Gunnery Officer (US Navy) |
| FGO | Film Grain Optimization |
| FGO | Foxshaw Gardens Online (UK) |
| FGO | Fresh Gallery Otara (Otara exhibitions gallery run by Manukau City Council, New Zealand) |
| FGO | Food: the Gift of Osiris (Darby et Al) |
| FGO | Fresh Grass Oil |
| FGO | Freaking Growth Opportunity (polite form) |