VTOS
| Acronym | Definition |
|---|---|
| VTOS | Virtual Technology Operating System |
| VTOS | Vocational Training Opportunities Scheme (Ireland) |
| VTOS | Virtual Try-Out Space (virtual engineering solution) |
| VTOS | Verification and Test OS (software) |
| VTOS | Virtual Technology Operating System (computing) |
| VTOS | Vent to Outside (HVAC) |