| Acronym | Definition |
|---|
| VAT | Value Added Tax |
| VAT | Vatican |
| VAT | Holy See (Vatican City, ISO Country code) |
| VAT | Visceral Adipose Tissue (body mass composition analysis) |
| VAT | Vodka and Tonic (drink) |
| VAT | Variable Attenuator |
| VAT | Vulnerability Assessment Team |
| VAT | Vehicle Anti-Theft (General Motors) |
| VAT | Vinyl Asbestos Tile |
| VAT | Victim Assistance Training (various locations) |
| VAT | Value Attribute Table |
| VAT | Virtual Allocation Table |
| VAT | Variable Allocation Table |
| VAT | Visual Audio Tool |
| VAT | Vaccin Antitétanique (French: Antitetanus Vaccine) |
| VAT | Ventricular Activation Time |
| VAT | Value Analysis Team (various organizations) |
| VAT | Vermont Agency of Transportation |
| VAT | Virtual Allocation Table (OSTA universal disk format) |
| VAT | Virtual Anaesthesia Textbook |
| VAT | Velocity at Threshold (aviation) |
| VAT | Voter Assist Terminal (election technology) |
| VAT | Vulnerability Analysis Team |
| VAT | Voyage Across Technology |
| VAT | Vérification d'Absence de Tension (French: Verification of the Absence of Voltage; electrical safety) |
| VAT | Video-Audio Tool |
| VAT | Volontaire à l'Aide Technique |
| VAT | Vacuum Air Tube |
| VAT | Voice Activated Typewriter |
| VAT | Virtual Address Translation |
| VAT | Video Assisted Thoracotomy |
| VAT | Vertical Angle Theorem |
| VAT | Valid Accounting Transactions |
| VAT | Veritas Amplus et Talio (gaming) |
| VAT | Vesicle-Associated Transporter (pharmacology) |
| VAT | Virtual Arrival Traffic |