| Acronym | Definition |
|---|
| VSL | Vienna Symphonic Library (Vienna, Austria) |
| VSL | Video Sales Letter |
| VSL | Visit Sierra Leone (tour operating company) |
| VSL | Virtual Stream Library |
| VSL | Virtools Scripting Language |
| VSL | Virtual Sampler Library |
| VSL | Video Services Library |
| VSL | Virtual Switch Links |
| VSL | Virtual Shareware Library |
| VSL | Virtual Socket Library |
| VSL | Vessel (shipping) |
| VSL | Value of Statistical Life |
| VSL | Variable Speed of Light (theoretical cosmology/physics) |
| VSL | Very Short List (culture recommendations) |
| VSL | Virtual Software Library |
| VSL | Voice, Speech and Language |
| VSL | Victorian School of Languages (Australia) |
| VSL | Virginia State Line |
| VSL | Vector Statistical Library |
| VSL | Volume Software Licensing (intellectual property) |
| VSL | Visit Sri Lanka (tourism) |
| VSL | Vitreous State Laboratory (Catholic University) |
| VSL | Veterinary Services Laboratory (Barbados) |
| VSL | Straight Line Velocity |
| VSL | Volume of Sacred Law (Freemasonry) |
| VSL | Venture Scout Leader |
| VSL | Variable Safety Level |
| VSL | Variable Spreading Length |
| VSL | Viscous Shock Layer |
| VSL | Virtual Second Line |
| VSL | Valley and Siletz Railroad (also abbreviated as VS) |