| Abbreviation | Definition |
|---|---|
| FSP | FILE SERVICE Publication |
| FSP | Finite State Process |
| FSP | Free System Projekt |
| FT | File Type |
| FTFM | Fix The Frigging Manual |
| FTI | File Type Information |
| FTL | Fuzzy Technology Language |
| FTO | File Transfer Order |
| FTS | Field Technical Service |
| FTS | Full Text Search |
| FTTB | Fibre To The Building |
| FTTC | Fibre To The Curb |
| FTTH | Fibre To The Home |
| FTU | File Transfer Utility |
| FTW | File Tree Walk |
| FU | Fortran Unit |
| FUBAR | Failed UniBus Address Register |
| FUD | Flawed User Decision |
| FUI | File Update Information |
| FUIV | F*** You! I'm vested |