Rp
RP, R-P, Rp, R-p, or rp may refer to:
Look up rp in Wiktionary, the free dictionary.
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, the IATA airline designator RP
 
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)
 
Science, technology, and mathematics
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
 - Role-playing
 - Rating Pending, a rating used by ESRB in promotional games that has lacked a rating.