KPA may refer to:
- Kenya Ports Authority
- Kiln phosphoric acid, a dry process to produce phosphoric acid at high temperature in a kiln
- Kilopascal (kPa), a unit of pressure
- Known-plaintext attack, a method of cryptanalysis
- Korean People's Army, the armed forces of North Korea
- Korps Politie Aruba, the Aruba Police Force
- The Kosovo Property Agency
- Also refers to the Montagnard name meaning "straight".
- Key Performance Areas