- KPL (Kapal Airport)
- KPM (Kompiam Airport)
- KPMG (Klynveld, Peat, Marwick, Goerdeler)
- KPN (Kipnuk Airport (FAA: IIK))
- KPNO (Kitt Peak National Observatory)
- KPO (Pohang Airport)
- KPP (Kalpowar Airport)
- KPPD (Key Process Parameter Description)
- KPPF (Kazakhstan Post-Privatiztion Fund)
- KPPI (Key Process Parameter Indicator)
- KPP-NEG (Key Player Problem - Negative)
- KPR (Port Williams Seaplane Base)
- KPRT (Kandahar Provincial Reconstruction Team)
- KPS (Kempsey Airport)
- KPT (Jackpot Airport (Hayden Field) (FAA: 06U))
- KPU (Key Process Utilities)
- KPV (Krupnokaliberniy Pulemet Vladimorova (Russian КПВТ Крупнокалиберный Пулемет Владимирова, "Large-Calibre Machinegun Vladimirov")[1])
- KPVT (Krupnokaliberniy Pulemet Vladimorova Tankoviy (Russian КПВТ Крупнокалиберный Пулемет Владимирова Танковый, "Large-Calibre Machinegun Vladimirov Tank")[2])
- KPW (North Korean won (ISO 4217 currency code))
- KPY (Port Bailey Seaplane Base)
- KPZ (Kapitan Zur See)
- KQ (Knowledge Quotient)
- KQA (Akutan Seaplane Base)
- KQB (Koonibba Airport)
- KQG (Knots and Quantum Gravity (book))
- KQJ (King, Queen, Jack)
- KQJT (King, Queen, Jack, Ten)
- KQL (Kol Airport)
- kr (Kanuri language (ISO 639-1 code))