Rp

RP, R-P, Rp, R-p, or rp may refer to:

Businesses and organizations

 * Rainforest Partnership, an environmental organization based in Austin, Texas
 * RallyPoint, a social network for the US military
 * Reform Party (Singapore), an opposition party in Singapore led by Kenneth Jeyaretnam
 * Republic Polytechnic, a polytechnic in Singapore
 * Rheinische Post, a German newspaper
 * Rhône-Poulenc, a former French chemical company
 * Royal Society of Portrait Painters (London), with membership indicated RP
 * Roma Party (Romska partija), a political party in Serbia
 * Welfare Party, or Refah Partisi, in Turkey
 * Chautauqua Airlines (IATA airline designator RP)
 * Registered Plumber, in UK

Economics and finance

 * Repurchase agreement, the sale of securities together with an agreement for the seller to buy back the securities at a later date
 * Reservation price, the highest price a buyer is willing to pay for goods or a service
 * Rupee, common name for the currencies of several countries
 * Rupiah, the official currency of Indonesia

Language

 * Received Pronunciation, a standard accent of Standard English in the United Kingdom
 * Rioplatense Spanish, a dialect spoken in parts of Argentina and Uruguay

Places

 * Republic of the Philippines (former two-letter country code)
 * Republic of Poland (Rzeczpospolita Polska)
 * Rhineland-Palatinate, one of sixteen German states
 * Région Parisienne or Île-de-France, the area surrounding Paris, France

Religion

 * Reformed Presbyterian Church (disambiguation)
 * Regulative principle of worship, a Calvinist and Anabaptist principle
 * Religious Programs Specialist
 * Retribution principle (RP)

Biology and medicine

 * Radical prostatectomy
 * Raynaud's phenomenon
 * Retinitis pigmentosa
 * Medical prescription from Latin, also Rp/.

Mathematics

 * RP (complexity), randomized polynomial time, a class in computational complexity theory
 * Ranked Pairs, a Condorcet voting method
 * Real projective line
 * Real projective plane
 * Real projective space

Other uses in science and technology

 * Rapid prototyping, a manufacturing and engineering process
 * Rear projection effect, a film technique
 * Red phosphorus, an allotrope of the element
 * Rendezvous Point in Protocol Independent Multicast, a collection of network layer multicast routing protocols
 * Reversed-phase chromatography, a laboratory technique
 * Route Processor, a general-purpose CPU in some Cisco routers
 * RP, a small rock climbing nut, named after Roland Pauligk
 * RP-1, a rocket propellant
 * RP-3, a British rocket projectile in World War II

Other uses

 * Relief pitcher, a baseball term
 * Registered Paralegal, a certification program of the National Federation of Paralegal Associations
 * Riot Points (used in League of Legends)
 * Regimental Police or Regimental Provost, soldiers responsible for regimental discipline and unit custody in the British Army
 * Reporting Person or Party, in U.S. law enforcement jargon
 * Registered Psychotherapist within Ontario
 * Role-playing
 * Rating Pending, a rating used by ESRB in promotional games that has lacked a rating.