TSF may refer to:
Broadcasting TSF, a Portuguese radio station TSF Jazz, a French jazz radio station, previously known as TSF Télécoms Sans Frontières, a humanitarian organization specializing in emergency telecommunications Tip-sleeve (TS) female, an audio jack in the phone connector (audio) family Télégraphie Sans Fil, an old French time for Wireless communication communication
Computing Text Services Framework, a COM framework and API in Windows XP and later Windows operating systems Timing synchronization function, in IEEE 802.11 wireless local area network (WLAN) standard to fulfill timing synchronization among users
Medicine Taylor Spatial Frame, an external fixator for treating fractures Triceps skin fold, a measurement of the upper arm
Other Tactical Surface Fighter, a kind of mecha from the series Muv-Luv Tailings Storage Facility, an earth-fill embankment dam used to store slurry waste left from mining operations Taoyuan Sports Federation, a sport organization in Taiwan The Sauce Factory, an independent record label founded by American rapper Sauce Walka The Stafford Foundation, a non-profit organization Tons per square foot, pressure unit Treviso Airport, IATA airport code Turkish Chess Federation ()