PLP
- PL/P
- PLP Architecture
- PLP2
- Packet Layer Protocol
- Pamantasan ng Lungsod ng Pasig
- Papain-like protease
- Parliamentary Labour Party
- Party for Freedom and Progress
- People's Life Party
- Phantom limb pain
- Phoenix Living Poets
- Physical Layer Pipe
- Pragati Legislature Party
- Premier League Productions
- Progressive Labour Party (disambiguation)
- Progressive Liberal Party
- Prosopographisches Lexikon der Palaiologenzeit
- Proteolipid protein 1
- Pyridoxal phosphate