| Acronym | Definition |
|---|
| TSK | Task |
| TSK | Treasury of Scripture Knowledge |
| TSK | Temporary Session Key |
| TSK | Tasking |
| TSK | Tsukishima Kikai Co., Ltd. (Japan) |
| TSK | The Sleuth Kit (UNIX) |
| TSK | The Silent Killer (gaming clan) |
| TSK | Tesked (Swedish: teaspoon) |
| TSK | Tall Skinny Kiwi |
| TSK | The Subtle Knife (Phillip Pullman book) |
| TSK | Skin Temperature |
| TSK | Turk Silahli Kuvvetleri (Turkish Armed Forces) |
| TSK | Takagi-Sugeno-Kang (fuzzy network model) |
| TSK | Tekniikan Sanastokeskus (Finland) |
| TSK | Tampa Scale for Kinesiophobia |
| TSK | Typgeprüfte Schaltgerätekombinationen (Type-Tested Switchgear Assembly) |
| TSK | Time Stranger Kyoko (anime) |
| TSK | Telcordia Standards Knowledgebase |
| TSK | Transmission Security Key |
| TSK | Tang Shiu Kin (school) |
| TSK | Time Space Knowledge (inquiry method) |
| TSK | Three-Second Kiss (band) |
| TSK | The Screaming Kidneys (band) |
| TSK | Team Silent Kill (Airsoft team) |
| TSK | Touristik-Service-Kühlungsborn (German) |
| TSK | Tokyo Senpaku Kaisha, Ltd |
| TSK | Top Secret Kid (gaming) |
| TSK | The Softkiller Crew |
| TSK | Thou Shalt Kill (record label) |
| TSK | The Serial Keeper |
| TSK | Takarazuka Sakudokan K.K (now Hi-Lex Corporation; Japan) |
| TSK | Table Space Kitchen (real estate) |
| TSK | Truk-Soft Köln (German) |
| TSK | Team Swiss Kart (gaming) |
| TSK | Tallinna Sikupilli Keskkool |
| TSK | Tiger Shulmann's Karate |
| TSK | Trade Services Contract |
| TSK | Technical Society of Knoxville |
| TSK | Telekommunikation Service Kaya |
| TSK | Towarzystwo Szkolne Kociszew (Polish) |
| TSK | Tongue Smart Kids |
| TSK | The Suicide Crew (gaming) |
| TSK | Transport Service Külbleck |
| TSK | Total Street Knowledge (clothing company; Cleveland, OH) |
| TSK | Technické služby mesta Karviné |
| TSK | Twiztid Serial Killa (Insane Clown Posse) |
| TSK | The Sound Key (band) |