- VRE
- VRF
- VRLA
- VRLA battery
- VRML
- VRRP
- VRSA
- VSAT
- VSEPR theory
- VSMOW
- VSP
- VSS
- VSV
- VTA
- VTEC
- VTK
- VTOL
- VTS
- VVC
- VVER
- VVT
- VVVF
- VaR
- Vacancies
- Vacancy defect
- Vaccination
- Vaccination schedule
- Vaccine efficacy
- Vaccine-preventable disease
- Vaccines
- Vaccinia
- Vacuum
- Vacuum arc
- Vacuum aspiration
- Vacuum assisted resin transfer molding
- Vacuum bag moulding
- Vacuum capacitors
- Vacuum casting
- Vacuum chambers
- Vacuum consolidation
- Vacuum deposition
- Vacuum drying
- Vacuum evaporation
- Vacuum expectation value
- Vacuum filtration
- Vacuum flask
- Vacuum forming
- Vacuum furnace
- Vacuum induction melting
- Vacuum insulated panel
- Vacuum level
- Vacuum permeability
- Vacuum permittivity
- Vacuum preloading
- Vacuum pumps
- Vacuum sewer
- Vacuum state
- Vacuum table
- Vacuum trucks
- Vacuum tubes
- Vadose zone
- Vagal tone
- Vaginal
- Vaginal bleeding
- Vaginal flora
- Vaginitis
- Vagotomy
- Vagueness
- Vagus nerve
- Vagus nerve stimulation
- Valence
- Valence electrons
- Valentinite
- Valgus
- Valid time
- Validation
- Validation and verification
- Validation master plan
- Validator
- Validity
- Valinomycin
- Valley glaciers
- Valley of stability
- Valleys
- Valleytronics
- Valproate
- Valproic acid
- Valsalva maneuver
- Valsartan
- Valuation
- Value added
- Value engineering
- Value function
- Value in use
- Value network analysis
- Value of information
- Value of life
- Value sensitive design
- Value stream
- Value-added services