| VSI | Valeo Service Italia 
| Others |
| VSI | Value of Serious Injury
| Others |
| VSI | Value Satisfaction Index
| Others |
| VSI | Valve Seat Insert
| Others |
| VSI | Vapour Sequential Injection
| Others |
| VSI | Variable Service Interval
| Others |
| VSI | Varsity Student Institute
| Others |
| VSI | Vasantdada Sugar Institute
| Others |
| VSI | VATES Simple Interface
| Others |
| VSI | Vehicle Safety Inspection
| Others |
| VSI | Vehicle Safety Inspectorate
| Others |
| VSI | Vehicle Safety Institute
| Others |
| VSI | Vehicle Secure Indicator
| Others |
| VSI | Vehicle Severity Index
| Others |
| VSI | Vehicle Standard Interface
| Others |
| VSI | Vehicle Standards Information
| Others |
| VSI | Vehicle System Interface
| Others |
| VSI | Ventana Systems, Inc.
| Others |
| VSI | Venture Strategies Innovations
| Others |
| VSI | Vertical Speed Indicator
| Others |
| VSI | Vertical Stability Index
| Others |
| VSI | Very Silly Information
| Others |
| VSI | Victim-Sensitive Interview
| Others |
| VSI | Video Services Inc
| Others |
| VSI | Video Simulation Interface
| Others |
| VSI | Vietnam Strategic Investments
| Others |
| VSI | Vinyl Siding Institute
| Others |
| VSI | Virtual Server Infrastructure
| Others |
| VSI | Virtual Server Instance
| Others |
| VSI | Virtual Session Indexer
| Others |
| VSI | Virtual Socket Interface
| Others |
| VSI | Virtual Sportsbook International
| Others |
| VSI | Virtual Storage Integrator
| Others |
| VSI | Virtual Switch Instance
| Others |
| VSI | Virtual Switch Interface
| Others |
| VSI | Virtual Switching Instance
| Others |
| VSI | Viscosity Sensitivity Index
| Others |
| VSI | Visible Stability Index
| Others |
| VSI | Vision Systems International, LLC.
| Others |
| VSI | Visual Studio Installer
| Others |
| VSI | Vitamin Shoppe Inc
| Others |
| VSI | Vivid Studios Inc
| Others |
| VSI | Vlbi Standard Interface
| Others |
| VSI | VMS Software Inc
| Others |
| VSI | Voice and Script International Ltd
| Others |
| VSI | Voice Stress Information
| Others |
| VSI | Voltage Source Inverter
| Others |
| VSI | Voltage Source Inverters
| Others |
| VSI | Voluntary Sector Initiative
| Others |
| VSI | Voluntary Separation Incentive
| Others |
| VSI | Vonachen Services Inc
| Others |
| VSI | Vpls Switch Instance
| Others |