| Acronym | Definition |
|---|
| BAT | Batch file (File Name Extension) |
| BAT | Blood Alcohol Test |
| BAT | British American Tobacco |
| BAT | Best Available Technology |
| BAT | Battery |
| BAT | Batch |
| BAT | Burst Alert Telescope |
| BAT | Bachelor of Applied Technology |
| BAT | Brown Adipose Tissue |
| BAT | Best Available Technique |
| BAT | Bon À Tirer (French: final print proof) |
| BAT | Breath Alcohol Technician |
| BAT | Bad Acid Trip (band) |
| BAT | British Antarctic Territory |
| BAT | Battle Arena Toshinden (video game) |
| BAT | Best Available Treatment |
| BAT | Brockton Area Transit (Massachusetts) |
| BAT | Block Address Translation |
| BAT | Bureau of Apprenticeship Training |
| BAT | Biometrics Automated Toolset |
| BAT | Brilliant Anti-Tank |
| BAT | Blunt Abdominal Trauma |
| BAT | Berlinetta Aerodinamica Tecnica (Italian car model design; Alfa Romeo Automobiles) |
| BAT | Bouquet Association Table (DVB) |
| BAT | Building Architect Tool (SimCity game) |
| BAT | Brockton Area Transit Authority |
| BAT | Brilliant Anti-Armor Submunition |
| BAT | Ballistic Aerial Target |
| BAT | Blitz Action Trauma (ammunition; Geco) |
| BAT | Brilliant Anti-Armor Technology |
| BAT | Brightness Acuity Tester (ophthalmology) |
| BAT | Battle Android Trooper (G.I. Joe character) |
| BAT | Billet des Auteurs de Théatre (French theater journal) |
| BAT | Bureau des Affaires Typographiques (French: Typographic Affairs Office) |
| BAT | Biological Augmentation Team |
| BAT | Beam Assembly Teleoperator |
| BAT | Battlemap Analysis Tool |
| BAT | Bell Atlantic Telephone |
| BAT | Business Acceptance Test |
| BAT | Bachelor of Arts in Teaching |
| BAT | Bay Area Theatres |
| BAT | Big Ass Tent |
| BAT | Basic Armor Training |
| BAT | Britannia Amritraj Tennis Academy (India) |
| BAT | Bordeaux Airsoft Team (Bordeaux, France) |
| BAT | Borehole Acoustic Televiewer |
| BAT | Burst Arrival Time |
| BAT | Basic Acceptance Test (quality assurance) |
| BAT | Bench Acceptance Test |
| BAT | Behavior Adjustment Training (animal training) |
| BAT | Business Acquisition Team |
| BAT | Base Assistance Team |
| BAT | Behavior Adjustment Time |
| BAT | Baseline Acceptance Test |
| BAT | Boresight Alignment Tool |
| BAT | Barretos, Sao Paulo, Brazil (Airport Code) |
| BAT | Boost Air Temperature (Mazda) |
| BAT | Battlefield Assessment Team |
| BAT | Basic Attributes Tester |
| BAT | Boric Acid Tank/Transfer |
| BAT | Backup Auxiliary Transformer |
| BAT | Behaviour Analysis Therapy |
| BAT | Baseline Analysis Tool |
| BAT | Burst Assembly Timer |
| BAT | Burglary Abatement Team |
| BAT | Briefing Action Team |
| BAT | Béton Armé Translucide (French: Translucent Reinforced Concrete) |
| BAT | Business Administration Team (various organizations) |
| BAT | Bundesangestelltentarif (German public service salary scheme) |