KHS
- KHS Bicycles
- KHS GmbH
- KHS Musical Instruments
- Kagman High School
- Kaiserslautern High School
- Karate High School
- Kasturba Health Society
- Keira High School
- Kents Hill School
- Kentucky Historical Society
- Khasab Airport
- Kingsley High School (Michigan)
- Kingston High School (New York)
- Kingswood House School
- Kirkwood High School
- Kong Hwa School
- Kurt Hugo Schneider
- Kurtköy High School
- Order of the Holy Sepulchre (Catholic)
- Potassium hydrosulfide