PRL may refer to:

Places

Polish People's Republic The Polish People's Republic ( pl, Polska Rzeczpospolita Ludowa, PRL) was a country in Central Europe that existed from 1947 to 1989 as the predecessor of the modern Republic of Poland. With a population of approximately 37.9 million nea ...

(''Polska Rzeczpospolita Ludowa''), 1952–1989 *

Punggol Regional Library Punggol Regional Library (Chinese: 榜鹅区域图书馆; Malay: ''Perpustakaan Wilayah Punggol'') is a regional library located in Punggol, Singapore within One Punggol, with a connecting bridge to Sam Kee LRT station and within walking dist ...

, an upcoming regional library in Punggol, Singapore

Business and enterprises

Penn Eastern Rail Lines East Penn Railroad is a short-line railroad that operates a number of mostly-unconnected lines in the U.S. states of Pennsylvania and Delaware. Except for two industrial park switching operations, all are former Pennsylvania Railroad or Read ...

, reporting mark

Computing and technology

* Preferred Roaming List, in CDMA phones *

Proportional reduction in loss Proportional reduction in loss (PRL) is a general framework for developing and evaluating measures of the reliability of particular ways of making observations which are possibly subject to errors of all types. Such measures quantify how much havin ...

, a measure of reliability *

Protocol-relative link A Uniform Resource Locator (URL), colloquially termed as a web address, is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifie ...

, URLs which do not specify a protocol

Organizations

Liberal Reformist Party (Dominican Republic) The Liberal Reformist Party ( or ''PRL''), formerly Liberal Party of the Dominican Republic ( or ''PLRD'') is a liberal political party in the Dominican Republic. The party was originally named La Estructura, Nohlen, D (2005) ''Elections in the ...

* ''

Parti Réformateur Libéral The Liberal Reformist Party (french: Parti Réformateur Libéral, PRL) was a liberal political party active in Wallonia and Brussels in Belgium. The PRL grew out of the Francophone part of the unitary liberal Party for Freedom and Progress (PVV-P ...

'', a former political party in Belgium *

Party of the Radical Left The Party of the Radical Left ( sr-cyrl, Партија радикалне левице, Partija radikalne levice, PRL) is a left-wing political party in Serbia. It was founded in September 2020 as the successor to Social Democratic Union. T ...

(''Partija radikalne levice''), a political party in Serbia *

Republican Party of Liberty The Republican Party of Liberty (french: Parti républicain de la liberté, PRL) was a centre-right to right-wing French political party founded after the Liberation of France on 22 December 1945 by Joseph Laniel, André Mutter, Édouard Fré ...

, a conservative political party in France, 1945–1951

Science and healthcare

Physical Research Laboratory The Physical Research Laboratory (PRL) is a National Research Institute for space and allied sciences, supported mainly by Department of Space, Government of India. This research laboratory has ongoing research programmes in astronomy and astrop ...

, India * ''

Physical Review Letters ''Physical Review Letters'' (''PRL''), established in 1958, is a peer-reviewed, scientific journal that is published 52 times per year by the American Physical Society. As also confirmed by various measurement standards, which include the ''Journa ...

'', a scientific journal *

PRL-8-53 PRL-8-53 is a nootropic substituted phenethylamine that has been shown to act as a hypermnesia, hypermnesic drug in humans; it was first synthesized by medical chemistry professor Nikolaus Hansl at Creighton University in the 1970s as part of his ...

, Nootropic research chemical *

Prolactin Prolactin (PRL), also known as lactotropin, is a protein best known for its role in enabling mammals to produce milk. It is influential in over 300 separate processes in various vertebrates, including humans. Prolactin is secreted from the pit ...

, a hormone {{disambiguation