PPA may refer to:

Biology and medicine

* '' Palpatio per anum'', a rectal examination *

Parahippocampal place area The parahippocampal gyrus (or hippocampal gyrus') is a grey matter cortical region, a gyrus of the brain that surrounds the hippocampus and is part of the limbic system. The region plays an important role in memory encoding and retrieval. It ha ...

, in the brain *

Phenylpropanolamine Phenylpropanolamine (PPA), sold under many brand names, is a sympathomimetic agent used as a decongestant and appetite suppressant. It was once common in prescription and over-the-counter cough and cold preparations. The medication is taken ...

, a largely discontinued decongestant drug *

Primary progressive aphasia In neurology, primary progressive aphasia (PPA) is a type of neurological syndrome in which language capabilities slowly and progressively become impaired. As with other types of aphasia, the symptoms that accompany PPA depend on what parts of ...

, a neurological condition affecting language

Politics, government, and military

Public Policy and Administration ''Public Policy and Administration'' is a quarterly peer-reviewed academic journal that covers the field of public administration. The editors-in-chief are Alessandro Sancino (The Open University), and Edoardo Ongaro (The Open University). It was ...

, an academic journal on public administration, often abbreviated as PPA *

Paraguayan People's Army The Paraguayan People's Army (, EPP) is a Marxism-Leninism, Marxist–Leninist Guerrilla warfare, guerrilla group that officially operates in Paraguay since March 1, 2008, although its antecedents go back as far as the 1990s, acting at that time ...

, a group considered a terrorist organization by the Paraguayan state * ', an Algerian political party *

Philadelphia Parking Authority The Philadelphia Parking Authority (PPA) is an agency of the Commonwealth of Pennsylvania that manages many parking operations for Philadelphia. The PPA was created by the Philadelphia City Council on January 11, 1950, for the purpose of cond ...

, a parking agency in Pennsylvania, United States *

Philippine Ports Authority The Philippine Ports Authority (PPA; ) is a government-owned and controlled corporation under the Department of Transportation as an attached agency. It is responsible for the financing, management and operations of public ports throughout ...

Progressive Peoples Alliance The Progressive Peoples Alliance (PPA) is a political party in Nigeria. The party won gubernatorial elections in 2003 and 2007 in Abia State. The party also won the governorship election in 2007 in Imo State. The Governor of Abia State is Chie ...

, a political party in Nigeria *

People's Party of Arunachal Peoples Party of Arunachal is a regional political party in the Indian state of Arunachal Pradesh. It was founded in September 1977 by Bakin Pertin, Oken Lego and L. Wanglat as president, Vice President and General Secretary of the party. To ...

, an Indian regional political party * Popski's Private Army, a small World War II Special Forces unit of the British 8th Army

Businesses and organizations

Businesses

* Palau Pacific Airways, a defunct charter airline * Piraeus Port Authority, Greece

Professional and trade associations

* Pakistan Pharmacists Association *

Professional Photographers of America Professional Photographers of America (PPA) is a Nonprofit organization, nonprofit trade association of professional photographers. As of August 2022, PPA has 35,000 members. History 19th century The association began in December 1868 as the N ...

Professional Publishers Association The Professional Publishers Association (PPA), formerly known as the Periodical Publishers Association until 2011, is the main publishing industry body which promotes companies involved in the production of media, supporting the creative economy a ...

* Pictorial Photographers of America, founded by

Clarence Hudson White Clarence Hudson White (April 8, 1871 – July 8, 1925) was an American photographer, teacher and a founding member of the Photo-Secession movement. He grew up in small towns in Ohio, where his primary influences were his family and the social lif ...

with several others in 1916 * Pre-School Playgroups Association, a British charitable organisation

Laws

Pension Protection Act of 2006 The Pension Protection Act of 2006 (), 120 Stat. 780, was signed into law by U.S. President George W. Bush on August 17, 2006. Pension reform This legislation requires companies who have underfunded their pension plans to pay higher premiums t ...

, United States *

Pollution Prevention Act of 1990 The Pollution Prevention Act of 1990 (PPA) is a United States federal law that created a national policy to promote the prevention of pollution or reduction at pollution sources wherever possible. The law also expanded the Toxics Release Invent ...

, United States * Public Procurement Act (Switzerland)

Business

* Power purchase agreement, a contract for the purchase of electrical energy *

Purchase price allocation Purchase price allocation (PPA) is an application of goodwill accounting whereby one company (the acquirer), when purchasing a second company (the target), allocates the purchase price into various assets and liabilities acquired from the transacti ...

Mathematics

* Point pattern analysis, in geometry *

PPA (complexity) In computational complexity theory, PPA is a complexity class, standing for "Polynomial Parity Argument" (on a graph). Introduced by Christos Papadimitriou in 1994 (page 528), PPA is a subclass of TFNP. It is a class of search problems that can be ...

, a class of computational search problems

Sports

* Professional Pickleball Association * Professional Putters Association *

Poker Players Alliance The Poker Players Alliance (PPA) is an American nonprofit Interest group formed to emphasize the rights of poker players, and to protect the players' liberties." The PPA formed to serve as an advocacy group to Washington to establish rights and ...

, a USA advocacy/lobbying group

Technology and science

* Pay-per-action * Personal Package Archive, an Ubuntu Linux software repository for managing source packages *

Polyphthalamide Polyphthalamide (aka. PPA, High Performance Polyamide) is a subset of thermoplastic synthetic resins in the polyamide (nylon) family defined as when 55% or more moles of the carboxylic acid portion of the repeating unit in the polymer chain is co ...

, semi-crystalline high-temperature plastic in the Nylon family *

Polyphosphoric acid In chemistry, a phosphoric acid, in the general sense, is a phosphorus acid, phosphorus oxoacid in which each phosphorus (P) atom is in the oxidation state +5, and is chemical bond, bonded to four oxygen (O) atoms, one of them through a double b ...

* PPa, symbol for the unit of pressure, petapascal (10¹⁵ pascal) * pPa, symbol for the unit of pressure, picopascal (10⁻¹² pascal)

Other uses

Participatory poverty assessment Participatory poverty assessment (PPA) is the approach to analyzing and reducing poverty by incorporating the views of the poor. PPAs attempt to better understand the poor, to give the poor more influence over decisions that affect their lives, and ...

Provisional application A provisional application is a patent application filed at the intellectual property offices of some countries. It does not mature into an issued patent and is deemed abandoned one year after its filing. It is used to secure a filing date for ...

, commonly known as a 'provisional patent application' * Planning, preparation and assessment, an allocation given to teaching professionals as part of their timetable {{disambiguation