PR
- Adobe Premiere Pro
- Event (probability theory)
- Glossary of tennis terms
- List of patrol vessels of the United States Navy
- P.R. (TV series)
- PR (complexity)
- PR interval
- PR postcode area
- PR-104
- Pagerank
- Pakatan Rakyat
- Pakistan Railways
- Pakistan Rangers
- Parachute rigger
- Paraná (state)
- Park and ride
- Parma
- Partisan Review
- Party of Labour (Serbia)
- Pastor
- Pathogenesis-related
- Penicillium roqueforti
- Performance Rating
- Permanent residency
- Perry Rhodan
- Personal record
- Philippine Airlines
- Pigment Red 179
- Pigment Red 190
- Pinch runner
- Platonic relationship
- Polregio
- Polskie Radio
- Positive-real function
- Poste restante
- Power Rangers
- Prandtl number
- Praseodymium
- Press release
- Princess Royal (disambiguation)
- Professor
- Progesterone receptor
- Project Reality
- Proportional representation
- Propyl
- Public relations
- Puerto Rico
- Pull request
- Punt returner
- Radical Party of Chile
- Radical Party of Chile (2018)
- Rector (ecclesiastical)
- Republican Party of Albania
- Response Evaluation Criteria in Solid Tumors
- YPbPr