| Acronym | Definition |
|---|
| FIEC | Formation des Investigateurs aux Essais Cliniques des Médicaments (French: Training to Investigators on Clinical Trials of Drugs) |
| FIEC | Fellowship of Independent Evangelical Churches |
| FIEC | Fédération de l'Industrie Européenne de la Construction (French: European Construction Industry Federation; Belgium) |
| FIEC | Fédération Internationale des Associations d'Études Classiques |
| FIEC | Food Industry Environmental Council (McLean, VA) |
| FIEC | Federación Internacional de Entidades Catalanas (Galician: International Federation of Catalan Entities; Spain) |
| FIEC | Financial Impact Estimating Conference |
| FIEC | Foresight International Education Center (Taiwan) |