English abbreviations from pki to pl
- PKI (Public Key Infrastructure (cryptography))
- PKK (Player Killer Killer)
- PKM (Pulemet Kalashnikova Modernizirovanniy (Russian ПКМ пулемет Калашникова модернизированный, "Machinegun Kalashnikov Modernised")[1])
- PKMS (Pulemet Kalashnikova Modernizirovanniy Stepanova (Russian ПКМС пулемет Калашникова модернизированный Степанова, "Machinegun Kalashnikov Modernised Stepanova")[1])
- PKMT (Pulemet Kalashnikova Modernizirovanniy Tankoviy (Russian ПКМТ пулемет Калашникова модернизированный танковый, "Machinegun Kalashnikov Modernised Tank") (a.k.a. PKTM[1]))
- PKO (Parakou Airport)
- PKP (Pi Kappa Phi Fraternity)
- PKP 3.0 (PatientKeeper Personal 3.0)
- PKQ (Pallet Maker, Quick)
- PKR (Pakistani rupee (ISO 4217 currency code))
- PKS (Phi Kappa Sigma Fraternity)
- PKT (Pulemet Kalashnikova Tankoviy (Russian ПКТ пулемет Калашникова танковый, "Machinegun Kalashnikov Tank")[1])
- PKTM (Pulemet Kalashnikova Tankoviy Modernizirovanniy (Russian ПКТМ пулемет Калашникова танковый модернизированный, "Machinegun Kalashnikov Tank Modernised") (a.k.a. PKMT)[1])
- PKU (Phenylketonuria)
- PKV (Pskov Airport)
- PKW (Selebi Phikwe Airport)
- PKX (Contracting Support Division, Warner Robins Air Force Base)
- PKZ (Pack-Zip)
- PL (Phase Line)
- P-L (a set of asteroid discoveries in the 1960s)
- P.L. (Public Law)