KCT may mean:
- Kansas City Terminal Railway, terminal railroad in the Kansas City metropolitan area
- Kaolin clotting time, a medical test used to detect lupus anticoagulant
- Kungchantang, the Wade–Giles spelling of the Chinese Communist Party
- Koggala Airport near Galle, Sri Lanka, IATA code
- King College of Technology in Namakkal, India
- Kumaraguru College of Technology in Coimbatore, India
- Korps Commandotroepen, Royal Netherlands Army specialist forces
- Kigali City Tower, the tallest building in Rwanda
- Knight Commander of Temple, a modern Knight of the Order of the Temple