FASO
| 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 |