| Acronym | Definition |
|---|
| FTSF➣Fédération des Travailleurs Socialistes de France (French: Federation of Socialist Workers of France) |
| FTSF➣Foreningen Til Sprydstagens Forevigelse (Danish sailing club) |
| FTSF➣Fair Trade Software Foundation (EU) |
| FTSF➣Full Time Support Force |
| FTSF➣Formation Technique sans Frontières (French: Technical Training without Borders; Switzerland) |