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alt. (w: Practical salinity unit) init. (w: Practical salinity unit)


The initials PSU often refer to a power supply unit, often that of a computer; or any other electronic apparatus such as an RF transmitter.

PSU may also refer to:


  • Pennsylvania State University
  • Portland State University
  • Pangasinan State University
  • Palawan State University
  • Partido State University
  • Plymouth State University
  • Pittsburg State University
  • Plattsburgh State University
  • Pembroke State University
  • Prince of Songkla University
  • Prince Sultan University
  • Puntland State University
  • Pacific States University

In entertainment:

  • Public Surveillance Unit, fictional law enforcement organisation in the Judge Dredd comic strip
  • Phantasy Star Universe, a persistent ORPG game by SEGA for PlayStation 2, Xbox 360 and PC
  •, PlayStation Universe website

In mathematics:

  • Projective Special Unitary group - a mathematics projective unitary group

In oceanography:

  • Practical salinity unit, a unit for quantifying a fluid's salinity

Other uses:

  • Parti Socialiste Unifié (disambiguation), various organizations in countries where French is often used
  • Passenger service unit
  • Police Support Unit
  • Port Security Unit, a U.S. Coast Guard expeditionary force protection unit.
  • Prueba de Selección Universitaria, public university admission test in Chile
  • Public Sector Undertaking, an Indian company with majority government ownership
  • Post-Soviet Union, i.e. CIS
  • Partido Socialista Unificado, Spanish for Bolivia's United Socialist Party