| Abbreviation | Definition |
|---|---|
| EFIE | Enose Fysikon Iatrikes Ellados |
| EFIE | Hellenic Association of Medical Physicists |
| EFMC | European Federation for Medicinal Chemistry |
| EFMI | European Federation for Medical Informatics |
| EFNS | European Federation of Neurological Societies |
| EFOSA | Fdration Europenne des Associations de Spcialistes en Orthodontie |
| EFOSA | Fédération Européenne des Associations de Spécialistes en Orthodontie |
| EFSE | European Foundation Society and Education |
| EFSM | Elizabeth Fry Society Of Manitoba |
| EFTS | European Federation of the Theosophical Society |
| EG | Eurographics |
| EG | European Association for Computer Graphics |
| EGA | European Generic Medicines Association |
| EGCS | East Grinstead Choral Society |
| EGCS | English Guernsey Cattle Society |
| EGIS | Energy Geoscience Infrastructure and Society |
| EGPS | Eastern Group Psychotherapy Society |
| EGS | Edinburgh Geological Society |
| EGS | European Glaucoma Society |
| EGSS | English Graduate Student Society |