| Abbreviation | Definition |
|---|---|
| FEH | Future Event Horse |
| FEI | Federation Equestre Internationale |
| FEN | Forsyth Edwards Notation |
| FEN | Forsythe Edwards Notation |
| FERS | Fast Entry Racing System |
| FF | Fantasy Football |
| FF | Final Fight |
| FF | Full Floater |
| FFA | Fly Fishing Arkansas |
| FFA | Football Federation Australia |
| FFA | Free Fight for All |
| FFA | Free For All |
| FFA2 | Final Fantasy Tactics Advance Two |
| FFAB | Federation Francaise d'Akido et de Budo |
| FFAH | Florida Fish And Hunt |
| FFAI | Filipino Fighting Arts International |
| FFAI | Flying Fifteen Sailing in Ireland |
| FFAI-KSA | Filipino Fighting Arts International, Kingdom of Saudi Arabia |
| FFAT | FooFire Assault Team |
| FFAV | Football For All Vietnam |