PCP may refer to:

In politics:

• Partido Comunista del Peru, also known as Shining Path
• Partido Comunista Paraguayo, Paraguayan Communist Party
• Partido Comunista Peruano, Peruvian Communist Party
• Partido Comunista Português, Portuguese Communist Party
• Partido Comunista Puertorriqueño, Puerto Rican Communist Party
• Partit Català Proletari, Proletarian Catalan Party

In science: The Communist Party of Peru (Spanish: El Partido Comunista del Perú), more commonly known as the Shining Path (Sendero Luminoso), is a Maoist guerrilla organization in Peru that launched the internal conflict in Peru in 1980. ... Paraguayan Communist Party (in Spanish: Partido Comunista Paraguayo) a communist political party in Paraguay. ... Peruvian Communist Party (in Spanish: Partido Comunista Peruano), a communist party in Peru. ... The Portuguese Communist Party (Portuguese: Partido Comunista Português, pron. ... The Puerto Rican Communist Party (Spanish: Partido Comunista Puertorriqueño, PCP) was a communist party in Puerto Rico. ... Proletarian Catalan Party (in Catalan: Partit Català Proletari) was a political party in Catalonia, Spain. ...

• Phencyclidine, a recreational drug known by a number of street names including angel dust, supergrass, killer weed, sherm, embalming fluid, and rocket fuel.
• PCP theorem, an important proof in computational complexity theory
• Probabilistically checkable proof, a notion in the theory of computational complexity
• Pentachlorophenol, timber preservative
• Pneumocystis pneumonia, (formerly known as Pneumocystis carinii pneumonia)
• Post correspondence problem, an important problem in computability theory
• Priority ceiling protocol, a computer science concept

Miscellaneous: Phencyclidine (a contraction of the chemical name phenylcyclohexylpiperidine), abbreviated PCP, is a dissociative drug formerly used as an anesthetic agent, exhibiting hallucinogenic and neurotoxic effects. ... The PCP theorem, proven in the early 1990s, states that every NP problem has a very efficient probabilistically checkable proof system. ... As a branch of the theory of computation in computer science, computational complexity theory describes the scalability of algorithms, and the inherent difficulty in providing scalable algorithms for specific computational problems. ... In computational complexity theory, PCP is the class of decision problems having probabilistically checkable proof systems. ... Complexity theory is part of the theory of computation dealing with the resources required during computation to solve a given problem. ... Pentachlorophenol (C6HCl5O) is a synthetic fungicide which is an organochloride. ... Pneumocystis pneumonia (PCP) is a form of pneumonia caused by the yeast-like fungal microorganism Pneumocystis jirovecii (Jirovecii is pronounced yee row vet zee eye). The causal agent was originally described as a protozoan and spelled and prior to then was formerly classified as a form of Pneumocystis carinii, a... The Post correspondence problem is an undecidable decision problem that was introduced by Emil Post in 1946. ... In computer science, computability theory is the branch of the theory of computation that studies which problems are computationally solvable using different models of computation. ... In computer science, priority ceiling protocol is used in scheduling to avoid deadlock due to priority inversion. ... Computer science, or computing science, is the study of the theoretical foundations of information and computation and their implementation and application in computer systems. ...

• Post-coital pill, a form of emergency contraception
• Primary care paramedic
• Primary care physician, a doctor who acts as first point of consultation for patients
• A song by Manic Street Preachers, from their 1994 album The Holy Bible
• Purple City Productions, a Harlem-based rap group
• Put-call parity
• Pre-charged Pneumatic, an air-gun technology
• Pharmaceuticals & Consumer Products
• Plumbing Code of Practice
• WikiProject Pokémon, formally known as the Pokémon Collaborative Project

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