| Acronym | Definition |
|---|
| VTT | Technical Research Centre of Finland |
| VTT | Vélo Tout Terrain (French: mountain bike; aka ATB or MTB) |
| VTT | Véhicules Tout-Terrain (French: All-Terrain Vehicles) |
| VTT | VMF (Variable Message Format) Test Tool |
| VTT | Valtion Teknillinen Tutkimuskeskus (Finnish: Technical Research Centre of Finland) |
| VTT | Voltage Tracking Termination |
| VTT | Variable Twin Turbo |
| VTT | Visual True Type |
| VTT | Venus Trade and Tours (Czech Republic) |
| VTT | Valtiotieteiden Tohtori (Finnish: Doctor of Political Sciences) |
| VTT | Video Teletraining |
| VTT | Variable Twin Turbo (engine technology) |
| VTT | Visual TrueType |
| VTT | Voice-to-text |
| VTT | Vacuum Tower Telescope |
| VTT | Virtual Tabletop (gaming software) |
| VTT | Vaal Triangle Technikon (Vaal University of Technology; South Africa) |
| VTT | Vetronics Technology Testbed |
| VTT | Valmistustekniikka Turvallisuustekniikka (Technical research Center in Finland) |
| VTT | Voltage Termination (Cisco) |
| VTT | Visual Target Tracking |
| VTT | Virtual Test Track |
| VTT | Verpackungs- und Transporttechnik (German: Packaging and Transportation Technology) |
| VTT | Vertical Threshold Test |
| VTT | Ventral Trigeminothalamic Tract |
| VTT | Variable Thickness Transient |
| VTT | Virtual Tele-Training |
| VTT | Vinson Trunking Terminal |
| VTT | Vendor Trial Testing (Sprint) |
| VTT | Vaccinia Tian Tan (vaccine) |
| VTT | Voltage Transient Tool (electrical engineering) |
| VTT | Vendor Turn Time |