| Abbreviation | Definition |
|---|---|
| FR | Frugal Realm |
| FRANK | Fully Robotic And Networked Kastle |
| FRCS | Forgotten Realms Campaign Sourcebook |
| FSA | Future Slayers of America |
| FSAC | Federated Suns Armored Cavalry |
| FSAG | Flying Saucer Art Gallery |
| FSI | Flamey Simm Incident |
| FSM | Frollo's Secret Mistresses |
| FSS | Federated Star Ship |
| FT | Forgotten Time |
| FT | Future Tidus |
| FTF | Fight The Future |
| FTL | Faster Than Light |
| FTMR | Far Too Many Robots |
| FU | Fearless Unit |
| FUN | Fantasy Uber Nation |
| FW | Federation Warp |
| FWA | Free Will Alliance |
| FWA | The Free World Alliance |
| GA | Glorious Alliance |