PSV may refer to:
- Partial specific volume
- Petit St Vincent, an island south of St. Vincent in the Grenadine islands
- Pharaoh's Servant, an expansion set for the Yu-Gi-Oh! Trading Card Game
- PlayStation Vita, a gaming handheld by Sony
- Platform supply vessel, a specific type of ship
- Pressure safety valve
- Police Support Volunteer, the rank of a volunteer performing civilian and usually office based work for British Police Forces
- Polished Stone Value, a measure of an aggregate's resistance to the polishing action of vehicle tyres
- Pressure Support Ventilation, a form of pressure cycled ventilation that gives a patient a set pressure of air at every breath initialization but has no respiratory rate set
- Peak systolic velocity
- PSV Eindhoven, a football club from Eindhoven, the Netherlands
- A Public Service Vehicle