Pei
- Bei (surname)
- I. M. Pei
- Mario Pei
- Matecaña International Airport
- Paul Ehrlich Institute
- Pe (Semitic letter)
- Pee (disambiguation)
- Pei (surname)
- Pei Commandery
- Pei County
- Pei language
- Pei, Tibet
- Pie
- Polyetherimide
- Polyethylenimine
- Prince Edward Island
- Princeton Environmental Institute
- Private Education Institution (Singapore)
- Private Equity International
- Shar Pei