| V | Vanadium; Volt |
| VAC | Volts alternating current |
| VAD | Vertical Axial Deposition (Sumitomo) |
| VAR | Value added reseller |
| VASE | Variable angle spectroscopic ellipsometry |
| VB | Valence Band; Vertical Bridgman |
| VBAP | Voice Band Audio Processor |
| VBM | Valence Band Maximum |
| VCA | Voltage controlled amplifier |
| Vcc | Main Power Supply (in a circuit) |
| VCML | Vodafone Content Markup Language |
| VCO | Voltage Controlled Oscillator |
| VCSEL | Vertical Cavity Surface Emitting Laser |
| VCz | Vapor-pressure-controlled Czochralski |
| VDC | Volts direct-current |
| Vdd | Secondary power supply (in a circuit) |
| VDP | Van der Pauw |
| VDS | Vapor distribution system |
| VDSL | Very high bit-rate Digital Subscriber Line |
| Vee | Negative power supply (in a circuit) |
| VESA | Video Electronics Standards Association |
| VFD | Vacuum Fluorescent Display |
| VFEI | Virtual factory equipment interface |
| VGA | Variable Gain Amplifier |
| VGF | Vertical Gradient Freeze |
| VGS | Video Guidance Sensor |
| VHDL | VHSIC Hardware Description Language |
| VHF | Very high frequency |
| VHN | Vickers hardness number |
| VHP | Very high productivity |
| VHORG | Vertically and horizontally organized grid |
| VHS | Variable hard sphere |
| VHSIC | Very high-speed integrated circuit |
| VIGS | Virtual Induced Gap States |
| VISC | Video Instruction Set Computing |
| VLA | Very large array |
| VLE | Vapor levitation epitaxy |
| VLF | Vertical laminar flow |
| VLIW | Very Long Instruction Word |
| VLL | Video Lead Locator |
| VLSI | Very Large Scale Integrated (circuit) |
| VM | Virtual machine |
| VME | Versa micromodule extension; Virtual manufacturing enterprise |
| VML | Vector Markup Language |
| V-MOS | V-groove metal-oxide semiconductor |
| VMW | Vertically modulated well |
| VOC | Volatile organic compound |
| VoD | Video on Demand |
| VPD | Vapor phase desorption; Vapor phase decomposition |
| VPD-ICPMS | Vapor phase decomposition-inductively-coupled plasma mass spectroscopy |
| VPE | Vapour Phase Epitaxy |
| VPN | Virtual Private Network |
| Vpp | Programmable power supply (in a circuit) |
| VRAM | Video RAM |
| VRG | Vibratory Rate Gyro |
| VRP | Vi tl Rid P t t i |
