{{Wiktionary|PSR}} '''PSR''' may refer to: {{TOC right}}
==Organizations== * Pacific School of Religion, Berkeley, California, US * Palestinian Center for Policy and Survey Research * Payment Systems Regulator in the United Kingdom * Physicians for Social Responsibility, US
===Political parties=== * Party of Socialists-Revolutionaries, a major socialist political party in the late Russian Empire * Polish Reason of State ({{lang|pl|Polska Racja Stanu}}), a minor Polish political party active between 2003 and 2005 * Revolutionary Socialist Party (Portugal) ({{lang|pt|Partido Socialista Revolucionário}}), a former Trotskyist party * Romanian Socialist Party (present-day) ({{lang|ro|Partidul Socialist Român}})
==Places== * Abruzzo Airport (IATA airport code), near Pescara, Italy * Pasir Ris MRT station (MRT station abbreviation), Singapore * Pioneer Scout Reservation, a Boy Scout camp in Ohio, US
==Science and technology== * Pulsar, a kind of star * Permanently shadowed region of a body in the Solar System * Primary radar * Perimeter surveillance radar * Posthumous sperm retrieval, from dead men
===Computing=== * PHP Standard Recommendation * Predictive state representation of a system * Problem Steps Recorder, psr.exe, a Microsoft utility * Panel self-refresh, in Embedded DisplayPort
==Law enforcement and military== * US Precision Sniper Rifle *PSR-90, a Pakistani precision sniper rifle
==Other uses== * Portuguese Sign Language (ISO 639-3 language code) * Potential support ratio, in demographics * Precision scheduled railroading * Price–sales ratio of stocks * Primitive Survival Rating, on the Discovery Channel TV series ''Naked and Afraid'' * Principle of sufficient reason * Profit and Sustainability Rules, in association football
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