PPU
- PPU (union)
- Palestine Polytechnic University
- Papora-Hoanya language
- Patliputra University
- Peace Pledge Union
- People's Protection Units
- Peoria and Pekin Union Railway
- Physics processing unit
- Picture Processing Unit
- Pirate Party of Ukraine
- Point Park University
- Power processing unit
- Price per unit
- Prvi Partizan
- The Plastic People of the Universe
- Ukrainian Underground Post