| Acronym | Definition |
|---|
| TSF | Text Services Framework |
| TSF | TOE Security Functions |
| TSF | Télégraphie Sans Fil (French: former term for radio) |
| TSF | Twelve Step Facilitation (counseling intervention) |
| TSF | Triceps Skinfold |
| TSF | Telephone Service Factor (percentage of calls answered in 20 seconds) |
| TSF | Terre Sans Frontières |
| TSF | Terascale Simulation Facility (Lawrence Livermore National Laboratory, California ) |
| TSF | Tillamook State Forest (Oregon) |
| TSF | The Silent Force (band) |
| TSF | Tetraselenafulvalene |
| TSF | Tailing Storage Facility (mining) |
| TSF | Traducteurs Sans Frontières (French: Translators Without Borders) |
| tSf | The Sonic Foundation (Sonic the Hedgehog fan website) |
| TSF | Twisted Software Foundation |
| TSF | Tower Shielding Facility |
| TSF | Team Strike Force (band) |
| TSF | Jazz Jackrabbit 2: The Secret Files (game) |
| TSF | Telefonia Sem Fios (Portuguese radio service) |
| TSF | Tree Scatternet Formation |
| TSF | The Sports Factory (Milfort, CT indoor training facility) |
| TSF | Temporary Storage Facility |
| TSF | Trading Spaces Family (TV show) |
| TSF | Tactical Strike Fighter |
| TSF | That's So Funny |
| TSF | Tritium Separation Facility |
| TSF | Thin Slot Formalism |
| TSF | Tritium Salt Facility |
| TSF | Talkspurt/Silence Flag |
| TSF | The Shared Forums (Mac Security forums) |
| TSF | Tab Separated File |
| TSF | Technical Services Firm |
| TSF | Transparent Spanning Frame |
| TSF | Tactical Support Facility |
| TSF | Training Summary File |
| TSF | Ten-Statement FORTRAN |
| TSF | Temporal-Spatial Filtering |
| TSF | Task Semantic Failure |
| TSF | Tooth Shear Fatigue (gear failure) |
| TSF | TSEC Spiritual Foundation (Thadomal Shahani Engineering College; Mumbai ,India) |
| TSF | Training Services Flight (Royal Australian Air Force) |
| TSF | Tri-State Family |
| TSF | Thrift Savings Fund (retirement savings and investment plan) |
| TSF | Time Standard File |
| TSF | Trojmiejska Szkola Fotografii (Tri-City School of Photography, Sopot, Poland) |