PP

PP, pp or P_p may refer to:

Arts and media

Music

• Pianissimo, 'very quiet' in musical dynamics
• Peso Pluma, musician
• PinkPantheress, singer

Other media

• Peppa Pig, a British preschool animated series (since 2004)
• Police procedural, a subgenre of detective fiction
• The Enemy of the World, a Doctor Who serial (1967–1968) (production code PP)

Organizations

Political parties

• Patriot Party (disambiguation)
• Patriotic Party (Guatemala)
• People's Partnership (Trinidad and Tobago)
• People's Party (disambiguation)
• Pirate Party (global)
• Prodalzhavame promyanata (Bulgaria) (usually translated as "We Continue the Change")
• Progressistas (Brazil)
• Progressive Party (disambiguation)
• Prosperity Party (Ethiopia)

Other organizations

• Pancasila Youth (Pemuda Pancasila), an Indonesian paramilitary organization
• PayPal, an online payments company
• PediaPress, a German software company
• Planned Parenthood, a reproductive health organization

People

• PinkPantheress, singer
• Philipp Plein, fashion designer
• Peso Pluma, musician
• Pierre Poilievre, Canadian politician

Science, technology, and mathematics

Biology and medicine

• Vitamin PP, or nicotinamide
• Paliperidone palmitate, an antipsychotic medication
• Pancreatic polypeptide, a polypeptide secreted by PP cells
  • PP cell, or pancreatic polypeptide cell
• pro parte, for a type of synonymy in taxonomy

Computing

• PP (complexity), a probabilistic polynomial time complexity class
• PP-format (Post Processing Format), a file format for meteorological data
• PP X.400, an e-mail protocol
• Plug and play (P&P), a property of a peripheral device
• Microsoft PowerPoint, a presentation program

Mathematics

• P–P plot, a probability plot, in statistics
• Percentage point, in business writing and statistics
• Presque partout (almost everywhere), in measure theory and analysis
• Process performance index (P_p)

Other uses in science and technology

• Length between perpendiculars ("pp" or "p/p"), the length of a ship
• Peak to peak (p–p) amplitude of a signal
• Polypropylene, a common plastic polymer
• Proton–proton chain, in nuclear physics and astronomy

Other uses

• Papa Pontifex, a post-nominal used by popes
• Paris Principles (cataloging), used in the creation of bibliographical cataloging rules
• per procurationem, used when signing on behalf of another
• Percy Pig, a British brand of pig-shaped fruit-flavoured confectionery products
• Walther PP, a pistol

See also

• Peepee (disambiguation)