| Acronym | Definition |
|---|
| VAC | Vacuum |
| VAC | Veterans Affairs Canada (Federal Government) |
| VAC | Vacant |
| VAC | Vacuum Assisted Closure |
| VAC | Ventilation and Air Conditioning |
| VAC | Vacate |
| VAC | Valve Anti Cheat (gaming) |
| VAC | Volts Alternating Current |
| VAC | Velvet Acid Christ (band) |
| VAC | Visa Application Charge (Australia) |
| VAC | Volunteer Ambulance Corps |
| VAC | Voluntary Action Center |
| VAC | VPN Accelerator Card |
| VAC | Vulnerability Assessment Committee |
| VAC | Violence Against Children |
| VAC | Variance At Completion |
| VAC | Victorian AIDS Council |
| VAC | Vlaams Agrarisch Centrum (Belgium) |
| VAC | Visual Approach Chart (aviation) |
| VAC | Visual Applet Configurator (Stockholm, Sweden) |
| VAC | Vitamin A Capsule |
| VAC | Voluntary Action Camden (England, UK) |
| VAC | Voluntary Action Cumbria (England, UK) |
| VAC | V Amphibious Corps |
| VAC | Value Added Chain (economics) |
| VAC | Versatile Advection Code |
| VAC | Valiant Air Command |
| VAC | Victim Assistance Center |
| VAC | Voluntary Action Cardiff (Wales, UK) |
| VAC | Value-Added Carrier |
| VAC | Vinyl Acetate Council |
| VAC | Vultures Are Circling (impending death implication) |
| VAC | Ventriculoatrial Conduction |
| VAC | Value Added Consultancy |
| VAC | Voice Activity Compression |
| VAC | Victims Advisory Committee |
| VAC | Value Added Channels |
| VAC | Var Alpine Club (Solliès-Toucas, France) |
| VAC | Vital Area Center |
| VAC | Vancouver Airport Chaplaincy (Vancouver International Airport) |
| VAC | Value Added Carbohydrate |
| VAC | Vulnerability Assessment Certification |
| VAC | Verified Audit Circulation Company |
| VAC | Validated Account Code |
| VAC | Vermont Arts Council (Montpelier, VT) |
| VAC | Vendor Advisory Council |
| VAC | Virtual Assessment Center (various meanings) |
| VAC | Vinyl Acetate |
| VAC | Valley Arts Council (various locations) |
| VAC | Vehicle Air Conditioning |