| Abbreviation | Definition |
|---|---|
| FMFL | Fantasy Motorsports Franchise League |
| FMGC | Franklin Mountain Gun Club |
| FMS | Fuel Modified Sports |
| FMW | Frontier Martial Arts Wrestling |
| FMW | Funk Masters Of Wrestling |
| FN | Formula Nippon |
| FNF | Fight No Further |
| FNHH | Friday Night Hardcore Havoc |
| FNW | Far North Wrestling |
| FO | Fly out |
| FO | Foul out |
| FOBT | Fixed Odds Betting Terminal |
| FOD | Field Of Dreams |
| FOO | February Outdoor Orientation |
| FOP | Field Of Play |
| FOP | Friend Of the PBA |
| FOPA | Formula One Promotions and Administration |
| FORC | Friends of Off Road Cycling |
| FORD | Fast Otoes Race Diligently |
| FORD | First On Racing Day |