Look up PSR in Wiktionary, the free dictionary.

PSR may refer to:

• Pacific School of Religion, Berkeley, California, US
• Palestinian Center for Policy and Survey Research
• Physicians for Social Responsibility, US

• Revolutionary Socialist Party (Portugal) (Partido Socialista Revolucionário)
• Romanian Socialist Party (present-day)
• Polish Reason of State

• 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

• Pulsar, a kind of star
• Primary radar
• Perimeter surveillance radar
• Posthumous sperm retrieval, from dead men

• PHP Standard Recommendation
• Predictive state representation of a system
• Problem Steps Recorder, psr.exe, a Microsoft utility
• Panel self-refresh, in Embedded DisplayPort

• US Precision Sniper Rifle
• PSR-90, a Pakistani precision sniper rifle

• 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

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