Tsk or TSK may refer to:
"tsk!", a dental click
Tsk Tsk Tsk, an Australian music, art and performance group
"TSK", a song by Nas from Magic 3, 2023
Galoter process, shale oil extraction technology
San-in Chūō Television Broadcasting, a Japanese TV station
Takagi-Sugeno-Kang, a system of Fuzzy logic
Terrace step kink, a model to describe the thermodynamics of crystal surface formation
The Sleuth Kit, computer forensics tools
Tiger Schulmann's Karate
Tomsk Avia (ICAO: TSK), a Russian airline
Transmission security keys
Tseku language (ISO 639:tsk), a language of Tibet
Turkish Armed Forces (Turkish: Türk Silahlı Kuvvetleri)
