Stuk or STUK may refer to:
- Radiation and Nuclear Safety Authority, the Finnish nuclear regulatory agency
- Stuk, a member of the Ukrainian hiphop group Glava 94
- StuK, abbreviation of Sturmkanone, a German designation for artillery guns
- "Stuk", a 2008 song by The Partysquad featuring Dio, Sef, Sjaak and Reverse
