| 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) |