| Acronym | Definition |
|---|
| EFN➣École Française de Naples (French: French School of Naples) |
| EFN➣Escuela Francesa de Negocios (Spanish: French School of Business; Uruguay) |
| EFN➣Exchange Fund Notes |
| EFN➣Extra Floral Nectar (plants) |
| EFN➣Environmental Funders Network |
| EFN➣Einheitliche Fortbildungsnummer |
| EFN➣Ephrin |
| EFN➣Electronic Frontier Norway |
| EFN➣Eugene Free Community Network |
| EFN➣European Fellowship in Neuropathology (professional standing) |
| EFN➣External Financing Needed |
| EFN➣Exceptional Financial Need scholarship |
| EFN➣Endettement Financier Net (Finance) |
| EFN➣Engine Family Number (automobiles) |
| EFN➣Emerging Futures Network |