VSA
- The Violin Society of America
- VMware vSphere
- VSA (Kennedy Center)
- VSA (charity)
- Vacuum swing adsorption
- Van der Waals surface
- Vector signal analyser
- Vehicle Stability Assist
- Vendor-specific attributes
- Very Small Array
- Veterans for a Secure America
- Veterans for a Strong America
- Viable systems approach
- Victoria Shanghai Academy
- Victorian Speleological Association
- Vietnamese Student Association
- Villahermosa International Airport
- Voice stress analysis
- Volunteer Service Abroad