| Acronym | Definition |
|---|
| FSFS➣Freesat from Sky (Sky TV; UK) |
| FSFS➣Fuzzy Sets and Fuzzy Systems (conference) |
| FSFS➣Free Software, Free Society Conference (Society for Promotion of Alternative Computing and Employment; Kerala, India) |
| FSFS➣Fast Secure File System |
| FSFS➣First Security Financial Services, Inc. (various locations) |
| FSFS➣Five-Star Frog Splash (wrestling finishing move) |
| FSFS➣Fredericton Science Fiction Society (University of New Brunswick; Canada) |
| FSFS➣Fin de Semana Fuera de Serie (Spanish: Outside Weekend Series) |