SSSF
| Acronym | Definition |
|---|---|
| SSSF | School Sisters of St. Francis (religious order) |
| SSSF | Steady State Steady Flow (control volume analysis assumption in mechanical engineering) |
| SSSF | Stockholms Studentsångarförbund (male choir in Stockholm, Sweden) |
| SSSF | Self Service Science Forum (Australia) |
| SSSF | Svenska Svartkruts Skytte Federationen (Swedish: Swedish Black Powder Shooting Federation; Gothenburg, Sweden) |
| SSSF | Space Station Support Facility |