| Acronym | Definition |
|---|
| TSL➣Texas State Library |
| TSL➣Turkish Super League (Turkish soccer club level) |
| TSL➣Technical Services Limited (Hong Kong) |
| TSL➣Trina Solar Ltd. (est. 1977; Chinia) |
| TSL➣The Silver Lining (game) |
| TSL➣The Student Life (Pomona College; Claremont, CA) |
| TSL➣The Starting Line (band) |
| TSL➣Teen Second Life (website) |
| TSL➣Technical Support Line |
| TSL➣Theft Security Lock |
| TSL➣Transient System Load |
| TSL➣The Sainsbury Laboratory (UK) |
| TSL➣Techsideline.com (website) |
| TSL➣Transport Layer Security |
| TSL➣Turkish Sign Language |
| TSL➣Time Spent Listening |
| TSL➣Troubles Spécifiques du Langage (French: Specific Language Disorders) |
| TSL➣Tourism Sarnia-Lambton (Canada) |
| TSL➣Tribunal Spécial pour Le Liban (French: Special Tribunal for Lebanon; UN Security Council) |
| TSL➣The Svedberg Laboratory (Uppsala, Sweden) |
| TSL➣Technical Services Librarian (various locations) |
| TSL➣Test Script Language (WinRunner) |
| TSL➣Techniques sans Labour (French: Techniques without Labor) |
| TSL➣Trial Standard Level (energy) |
| TSL➣Test and Set Lock |
| TSL➣Thermally Stimulated Luminescence |
| TSL➣Three Stage Lug (tires0 |
| TSL➣Tokyo Systems Laboratories (Tokyo, Japan) |
| TSL➣Toxic Substances List (various locations) |
| TSL➣Total Student Load (teacher-student ratio) |
| TSL➣Transport Security Layer |
| TSL➣Transmitter Studio Link |
| TSL➣Transportation Security Intelligence Service |
| TSL➣Type, Size and Location (preliminary design report for a bridge or highway structure) |
| TSL➣Techno Superliner |
| TSL➣Tcl Standard Library (programming) |
| TSL➣Throat Seal Liquid (piston pump technology) |
| TSL➣Total Sound Live (India) |
| TSL➣Top Site Listings (websites) |
| TSL➣Tyovaen Sivistysliitto Tsl (Finnish; Workers' Educational Association) |
| TSL➣Transfield Services Limited |
| TSL➣Teinte, Saturation, Lumière (French: Hue, Saturation, Light) |
| TSL➣Torque Sensing Link (Arctic Cat snowmobiles) |
| TSL➣Tri-State Logic |
| TSL➣Tri State Laboratories, Inc (Youngstown, OH) |
| TSL➣Time and Space Ltd |
| TSL➣Target Stock Level (economics) |
| TSL➣Transfinite Systems, Ltd. |
| TSL➣The Software Link, Incorporated |
| TSL➣Time, Space, Logistics (military planning considerations) |
| TSL➣Theoretical Splice Line |
| TSL➣Texas Shortline Railway |
| TSL➣Type Something Long |
| TSL➣Theme on Sustainable Livelihoods (International Union for Conservation of Nature) |
| TSL➣Temperature Switch, Low (piping and instrumentation) |
| TSL➣Text Substitution Language (knowledge technology) |