| Acronym | Definition |
|---|
| FASO➣Federación Argentina de Sociedades de Otorrinolaringología (Spanish: Argentine Federation of Otolaryngology Societies; Argentina) |
| FASO➣False Allegations Support Organisation (UK) |
| FASO➣Filipino American Student Organization (various locations) |
| FASO➣Fleet Aviation Specialized Operational (US Navy) |
| FASO➣Fleet Aviation Support Office |
| FASO➣Forward Airfield Supply Organization |
| FASO➣Field Aviation Supply Office |