KSC
- Communist Party of Czechoslovakia
- Kalinga language
- Karlsruher SC
- Kate Sheppard Cup
- Keene State College
- Kelsey-Seybold Clinic
- Kennedy Space Center
- Kenya Social Congress
- Kilogram-force per square centimetre
- Knights of Saint Columba
- Knights of the Southern Cross
- Korean Service Corps
- Košice International Airport
- Kurtis Sport Car