| Acronym | Definition |
|---|
| FIET➣Festival International des Étoiles (French: International Festival of Stars; Congo) |
| FIET➣Fellow of the Institution of Engineering and Technology (academic award; UK) |
| FIET➣Facultad Internacional de Educación Teológica (Spanish: International Faculty of Theological Education; Argentina) |
| FIET➣Forearm Ischemic Exercise Test (muscle test) |
| FIET➣Federazione Italiana Energia Tachionica (Italian: Italian Federation of Tachyon Energy) |
| FIET➣Furniture Industry Environment Trust (est. 1998; UK) |