KTK
| Acronym | Definition |
|---|---|
| KTK | Kuluttajatutkimuskeskus (Finnish: National Consumer Research Centre) |
| KTK | Kauno Technikos Kolegija (Lithuanian: Kaunas Technical College; Kaunas, Lithuania) |
| KTK | Kvinna Till Kvinna Foundation (Sweden) |
| KTK | Kolej Tunku Kurshiah (Malaysian college) |
| KTK | Katedra Technickej Kybernetiky (Sloak: Department of Technical Cybernetics) |
| KTK | Këshilli Transitor I Kosovës (Albanian: Transitive Council of Kosova) |