| Abbreviation | Definition |
|---|---|
| FEGB | Fédération Européenne du Génie Biologique |
| FEGC | Europäische Föderation für Chemie-Ingenieur-Wesen |
| FEGC | European Federation of Chemical Engineering |
| FEGC | Europische Fderation fr Chemie-Ingenieur-Wesen |
| FEGC | Fdration Europenne du Gnie Chimique |
| FEGC | Fédération Européenne du Génie Chimique |
| FEMS | Federation of European Materials Societies |
| FEMS | Federation of European Microbiological Societies |
| FEO | European Federation of Orthodontics |
| FEO | Foederatio Europea Orthodontica |
| FEPS | Federation of European Phycological Societies |
| FEPS | Federation of European Physiological Societies |
| FES | Flat Earth Society |
| FES | Florida Engineering Society |
| FES | Flower Essence Society |
| FESA | Further Education Society of Alberta |
| FeSBE | Federação de Sociedades de Biologia Experimental |
| FeSBE | Federao de Sociedades de Biologia Experimental |
| FeSBE | Federation of Societies of Experimental Biology (Brazil) |
| FESI | Federacin Espaola de Sociedades de Informtica |