PP, pp or Pp 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 (Pp)
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)