PSU
PSU stands for:
- Parti socialiste unifié , a socialist party in France
- Partido Socialista del Uruguay , the Socialist Party of Uruguay
- Partito Socialista Unitario , the name of three different Italian parties
- Partito Socialista Unitario (San Marino) , a San Marino party
- Passenger Service Unit , the service units installed above the passenger seats in an aircraft
- Patch Set Update , see Patch (Software)
- Pennsylvania State University
- Personal security environment , an encrypted area of a storage medium with personal data of the owner
- Phantasy Star Universe , a computer game
- Pittsburg State University
- Polysulfone , high temperature resistant plastic; High performance thermoplastic
- Portland State University
- Power supply unit , see power supply unit
- Practical Salinity Units , a benchmark for expressing salinity
- Prince of Songkla University in Southern Thailand
- Project Stuttgart – Ulm , a railway project in Germany
- Prueba de Selección Universitaria , the admission test of Chilean universities
- Psychosocial support
