VSR may refer to:
- Vooruzhrnnye sili rossi ( Armed Forces of Russia)
- a VR6 engine model, also known as the VGI (Variable Geometry Intake).
- V&S Railway
- Very Special Relativity, a concept in theoretical physics
- VSR V8 Trophy, a stock car racing series
- VSR sniper rifles by Tokyo Marui
- The initials VSR (Viva San Rocco or Long Live St. Rocco), found above doorways in Europe: a plea to ward off the plague.
- Victorian Scottish Regiment, Australia
- variable shunt reactor, a piece of electrical power equipment
- Voltage Sensitive Relay used for automotive, truck and marine applications.