PSL
- PSL (rifle)
- Pakistan Sign Language
- Pakistan Super League
- Palau Soccer League
- Parallel strand lumber
- Paris Sciences et Lettres University
- Party for Socialism and Liberation
- Pasadena Short Line
- Personal Stop Loss
- Personal seat license
- Perth Airport (Scotland)
- Philippine Super Liga
- Philippine Swimming League
- Photostimulated luminescence
- Pilipinas Super League
- Pioneer Square Labs
- Polish People's Party
- Port St. Lucie, Florida
- Port Sunlight railway station
- Portable Standard Lisp
- Premier Soccer League
- Premier Squash League
- Probabilistic soft logic
- Process Specification Language
- Productora de Software
- Professional support lawyer
- Profile Scripting Language
- Property Specification Language
- Psi (disambiguation)
- Public Suffix List
- Pumpkin spice latte
- Social Liberal Party (Brazil)
- Social Liberal Party (Moldova)
- Social Liberal Party (Tunisia)