PRS
- Dari (Persian dialect)
- PR (disambiguation)
- PR5 (disambiguation)
- PRS Guitars
- PRS Legislative Research
- PRS for Music
- PRSS (disambiguation)
- Pacific Ridge School
- Parti Rakyat Sarawak
- Party for Social Renewal
- Peripheral Reflex System
- Personal response system
- Pervasive refusal syndrome
- Phenotypic response surfaces
- Phocaean red slip
- Pierre Robin syndrome
- Pilots Right Stuff
- Polish Register of Shipping
- Polygenic risk score
- Poverty Reduction Strategy
- Precision Rifle Series
- Prees railway station
- Present tense
- President of the Royal Society
- Procedural reasoning system
- Product requirements document
- Public Radio Service
- Radical Socialist Republican Party
- Republican-Socialist Party