| Abbreviation | Definition |
|---|---|
| EFFECT | European Farms For Effective Clover Technology |
| EFFECT | European Forum for Enhanced Collaboration in Teaching |
| EFFIS | European Forest Fire Information Service |
| EFFIS | European Forest Fire Information System |
| EFFO | European Foundation for Osteoporosis |
| EFG | European Federation of Geologists |
| EFG | European Film Gateway |
| EFG | European Forum Gamers |
| EFG | European Funding Guide |
| EFG | European Furniture Group |
| EFGCP | European Forum for Good Clinical Practices |
| EFHA | European Federation Historic Aviation |
| EFHA | European Forum of Heritage Associations |
| EFI | European Federation for Immunogenetics |
| EFI | European Forest Institute |
| EFIA | European Fencing Industry Association |
| EFIA | European Flexographic Industry Association |
| EFIC | European Federation of IASP (Internet Access Service Provider) Chapters |
| EFIC | European Federation Of Iasp Chapters |
| EFIC | European Federation Of Isap Chapters |