PP

PP, pp, Pp, or P_p may refer to:

Business

• Planned Parenthood
• Microsoft PowerPoint documents
• Project Plan
• Privateer Press

Computer science

• Probabilistic polynomial time complexity class

Electronic media

• PayPal website
• Intel Pentium Pro 6th generation central processing unit
• Psychic Points from EarthBound
• Pokémon Platinum, Pokémon video game
• Power Points in the Pokémon video games
• PP-format, a Met Office proprietary file format for distributing climate data
• Program Provider
• Pure Pwnage, an internet-based show
• Puyo Puyo, Japanese puzzle video game
• Puzzle Pirates, an MMO maintained by Three Rings Design

Law

• Per procurationem ("by agency"), signing a letter on somebody else's behalf ("p.p.")
• Public prosecutor
• Personal property

Linguistics

• Participial phrase
• Postpositional phrase
• Prepositional phrase

Nautical terms

• Between perpendiculars ("pp" or "p/p")

Music

• Pianissimo ("pp")
• Pencey Prep, an American band
• Person Pitch, a Panda Bear album
• Phantom Planet
• "Paper Plane" (song), a song by Status Quo on the Piledriver album
• "Paper Planes", a song by M.I.A. on the Kala album

Politics

• Progress Party
• Patriotic Party (Guatemala) (Partido Patriota)
• People's Party (Romania) (Partidul Popular)
• People's Party (Spain) (Partido Popular)
• Pirate Party (Sweden) (Piratpartiet)
• Progressive Party of Brazil (Partido Progressista)
• Centro Democrático e Social/Partido Popular, (Portugal)

Religion

• Parish priest
• Prajnaparamita ("Perfection of Wisdom") and / or a genre of Buddhist sutras describing it
• lat. Pastor Pastorum ("Shepherd of Shepherds") behind the latin name of popes, e.g Benedictus PP. XVI.
• lat Pater Putatibus ("Foster Father/Assumed Father"), one of the titles of Saint Joseph as foster father of Jesus. Probably the reason for the Nickname of pepe for Saint Joseph in the spanish language.

Science, medicine & engineering

• Percentage point
• P_p, a process performance index
• Pancreatic polypeptide
• Per protocol population in clinical trials
• Piecewise polynomial, see Spline (mathematics)
• Peroxisome Proliferator
• Polypropylene, a very common plastic polymer
• Polyphagia
• Primary production
• Proton-proton chain reaction
• Pseudopotential, a computational chemistry approximation

Sport

• Persepolis F.C., Iranian football (soccer) team
• A power play, chiefly in ice hockey
• Prenton Park, the home of English association football club Tranmere Rovers

Other

• Pages, see Acronyms
• Paper Plane
• Parasitic Pal, an episode of the cartoon Camp Lazlo
• Polly Pocket
• Pater Patriae ("p.p."), an honorary title in the Ancient Roman Empire and often part of the emperor's title
• Prank Patrol, a children's TV series
• Pied Piper, fairy tale
• Post processing, photography
• Phoenix Project or Phoenix Worx online Gaming Client for Total Annihilation.
• Walther PP, a semi-automatic pistol.