PR

PR (or P. R.) commonly stands for

• Public relations, field concerned with maintaining public image
• Proportional representation, a voting system

PR (or P. R.) may also refer to:

Business and organisations

• Pakistan Railways
• Party of Regions
• Payroll
• Philippine Airlines, IATA airline designator
• The Princeton Review, an education company

Computing

• Adobe Premiere Pro, software which uses "Pr" as its icon abbreviation
• Pagerank, a Google technology
• Performance Rating, a computing term by AMD
• Perpendicular recording, hard disk technology
• Project Reality, a modification of the Battlefield 2 game

Military

• Parachute rigger, a former rank of the U.S. Navy
• Pershing Rifles

Science

• Photorefractive effect
• Prandtl number, in physics and engineering
• Praseodymium, chemical element number 59 (abbreviated "Pr")
• Progesterone receptor, a protein
• Propyl radicals, in organic chemistry

Mathematics

• Positive-real, in mathematics the defining property of positive-real functions
• PR (complexity), a complexity class

Places

• Paraná (state), Brazil (ISO 3166-2:BR)
• Parma (province) Italy (ISO 3166-2:IT)
• Port Richmond (disambiguation)
• Portuguese Republic
• PR postcode area, for Preston, Lancashire, United Kingdom
• Puerto Rico (island), USA (ISO 3166)

Sport

• Precisely Right, a synchronized skating team
• Punt returner, a position in American football
• Protected Ranking, a tennis term used in tournaments - see Glossary of tennis

Television

• Power Rangers, referred to as PR by fans
• P.R. (TV series), a Canadian television sitcom

Other

• Peer review
• Per rectum, by way of the rectum, such as in medication administration
• Permanent residency, in immigration
• Permanent revolution, in politics
• Poste restante, a service where the post office holds mail until the recipient calls for it
• Press release
• Protestant Reformation
• Partisan Review, a defunct political and literary journal

See also

• P&R (disambiguation)