Places
* Polish People's Republic (''Polska Rzeczpospolita Ludowa''), 1952–1989 * Punggol Regional Library, a regional library in Punggol, SingaporeBusiness and enterprises
* Pakistan Refinery Limited, a refinery in Karachi * Penn Eastern Rail Lines, reporting markComputing and technology
* Preferred Roaming List, in CDMA phones * Proportional reduction in loss, a measure of reliability * Protocol-relative link, URLs which do not specify a protocolPolitical parties
* Liberal Reformist Party (Dominican Republic) * '' Parti Réformateur Libéral'', a former political party in Belgium * Party of the Radical Left (''Partija radikalne levice''), a political party in Serbia * Republican Party of Liberty, a conservative political party in France, 1945–1951Other organisations
* Premiership Rugby Limited, the organising body of Premiership RugbyScience and healthcare
* Physical Research Laboratory, India * '' Physical Review Letters'', a scientific journal * PRL-8-53, Nootropic research chemical * Prolactin, a hormoneOther
* Parramatta Rail Link, a formerly proposed railway project in Sydney, Australia {{disambiguation