| Acronym | Definition |
|---|
| EFAS➣École de Formation d'Animation Sociale (French animation training school) |
| EFAS➣English for Academic Success (Canada) |
| EFAS➣European Federation of Autonomic Societies (UK) |
| EFAS➣En Route Flight Advisory Service |
| EFAS➣European Federation of Audiology Societies |
| EFAS➣Entreprise Féminine Rurale d'Economie Sociale (French: Corporate Women Rural Social Economy; Morocco) |
| EFAS➣Engine Failure Assist System |
| EFAS➣European Foot & Ankle Societies |
| EFAS➣Eastern Food Appreciation Society (UK) |
| EFAS➣Enhanced Fault Alarm System |