| Abbreviation | Definition |
|---|---|
| FSC | Florida Ski Council |
| FSD | FOX Sports Detroit |
| FSF | Faroe Islands Football Association |
| FSGS | Free Standard Game Server |
| FSI | Football Streaming Information |
| FSIF | Football Stadia Improvement Fund |
| FSL | Florida State League |
| FSM | Foot Strike Management |
| FSM | Footstrike Shear Management |
| FSN | Fox Sports Network |
| FSN | FOX Sports Networks |
| FSN | Freakin Sports Nothings |
| FSQHU | Fresno State Quarter Horse Unit |
| FSR | Full Speed Racing |
| FSRM | Fox Sports Rocky Mountain |
| FSRM | Fox Sports Rocky Mtn |
| FSSE | Fédération Suisse des Sports Equestres |
| FSSS | Federation Suisse de Sports Subaquatiques |
| FSSW | FOX Sports Southwest |
| FST | First Second Third |