| Acronym | Definition |
|---|
| VSS | Volume Shadow (Copy) Service (Microsoft) |
| VSS | Volume Shadow Copy Service |
| VSS | Versions |
| VSS | Visual SourceSafe (Microsoft) |
| VSS | Verses |
| VSS | Vendor Self Service (various locations) |
| VSS | Vital Statistics System (various organizations) |
| VSS | Vehicle Speed Sensor |
| VSS | Veronis Suhler Stevenson (investments; various locations) |
| VSS | Visual System Simulator (communications) |
| VSS | Volume Snapshot Service (Microsoft Windows) |
| VSS | Veteran Student Services (various universities) |
| VSS | Virtual Surround System |
| VSS | Vehicle Security System |
| VSS | Visual Source Safe |
| VSS | Virtual Server Service |
| VSS | Virtual School Symposium |
| VSS | Virtual Sound Stage |
| VSS | Virtual Schooling Service |
| VSS | Virtual Sound Source |
| VSS | Virtual Shared Server |
| VSS | Virtual Speaker Showcase |
| VSS | Virtual Space Simulation |
| VSS | Verifiable Secret Sharing |
| VSS | Veicolo Sperimentale a Sottosistemi |
| VSS | Vulnerability Scanning Service |
| VSS | Virtual Snapshot Service |
| VSS | Vanguard Software Solutions |
| VSS | Virtual Switching Supervisor |
| VSS | Verisign Security Services |
| VSS | Vector Symbol Set |
| VSS | Virus Scan Security Suite |
| VSS | Virtual Surround Sound |
| VSS | Virtual Switching System |
| VSS | Volatile Suspended Solids |
| VSS | Victim Support Scotland (UK) |
| VSS | Vulnerability Scanning Service (various companies) |
| VSS | Virgin Space Ship |
| VSS | Variable Star Section (astronomy) |
| VSS | Voluntary Separation Scheme |
| VSS | Video Surveillance System |
| VSS | Vital Signs Stable |
| VSS | Voting System Standards |
| VSS | Veer Surendra Sai (medical college; Burla, Orissa, India) |
| VSS | Volume of Distribution at Steady State |
| VSS | Van Swieten Society (music; Netherlands) |
| VSS | Virtual Sound System (software) |
| VSS | Variable Structure System |
| VSS | Virtual Schooling Service (Education Queensland; Australia) |
| VSS | VHDL System Simulator |
| VSS | Voice Storage System |
| VSS | Vested Security Solutions, LLC (Hackensack, NJ) |
| VSS | Vertigo Symptom Scale |
| VSS | Varma Security Systems (India) |
| VSS | Volunteer Stroke Service |
| VSS | Very Simple System |
| VSS | Vernon Secondary School |
| VSS | Vertical Solid-Shaft (motor) |
| VSS | Vulnerable Sector Screening (Royal Canadian Mounted Police; Canada) |
| VSS | Vinovka Snaiperskaja Spetsialnaya (sniper rifle) |
| VSS | Very Short Sentence |
| VSS | Variable Stability System |
| VSS | VirusScan Security Suite |
| VSS | Vertical Stud Soderberg (aluminium production) |
| VSS | Vaughan Secondary School |
| VSS | Virtual Service Switch |
| VSS | Vlamis Software Solutions, Inc. |
| VSS | Virtual Server Services (IBM) |
| VSS | Video Storage System |
| VSS | Vintovka Snaiperskaja Spetsialnaya (Russian: Special Sniper Rifle) |
| VSS | Vulnerable System Syndrome (patient safety) |
| VSS | Vignette Syndication Server |
| VSS | Voice Switching System |
| VSS | Volume Scattering Strength |
| VSS | Vendor Supplied Software |
| VSS | Visual Scheduling Systems (classroom scheduling software) |
| VSS | Virtual Service Sets (Trapeze) |
| VSS | Voltage Source Source |
| VSS | Visual Scheduling System (educational program) |
| VSS | Video Signal Simulator |
| VSS | Visual Server Side |
| VSS | Vehicle Simulation System |
| VSS | Virtual Sites Server |
| VSS | Virtual System Simulator |
| VSS | Visiting Scholars Scheme (Faculty of Arts and Social Sciences; National University of Singapore) |
| VSS | Video Scanner Switch |
| VSS | Vehicle Specific Simulator |
| VSS | Validation System Segment |
| VSS | Verification Status Signal |
| VSS | Voice Server System |
| VSS | Vendor Selection System |
| VSS | Voice Signaling System (loud speaker system in LGM25C Titan II Missile System) |
| VSS | Value-Based Six Sigma |
| VSS | Voltage for Substrate & Sources |