Bacula Administration Tool, an administration tool for the Bacula backup software.BAT, filename extension for a Batch file, a command program in MS-DOS, OS/2, and Windows
Entertainment
Big Ass Truck, a US psychedelic funk bandB.A.T. (Bureau of Astral Troubleshooters), a 1990 computer gameB.A.T. (G.I. Joe), or Battle Android Troopers, fictional robots in the G.I. Joe universe
Military
Biometrics Automated Toolset, a military biometric system - see Glossary of military abbreviationsBrilliant Anti-Tank (BAT), guided weapon employed by artillery rockets and bombsBrigade Anti-terrorisme, a Tunisian anti terrorism unit
Organisations
British American Tobacco, tobacco company based in London, EnglandBritish Antarctic Territory, a sector of Antarctica claimed by the UKBAT, a Ukrainian type of joint stock or public limited company - see Types of business entity
Science and medicine
Blunt abdominal trauma, a type of injuryBrown adipose tissue, or brown fatBurst Alert Telescope, an x-ray telescope used on the Swift Gamma-Ray Burst MissionBest available technology, a pollutant regulation term
Transportation
Alfa Romeo BAT, a series of concept cars by Alfa RomeoBAT Community Connector, bus system in Bangor, Maine, United StatesBergen Air Transport, an airline in NorwayBritish Aerial Transport, an early aircraft manufacturerBrockton Area Transit Authority, in Massachusetts, United States
