ADB or adb may refer to:

Arts and media Active Dimension Battle, a battle system in computer gaming Allgemeine Deutsche Biographie, a biographical reference work in the German language Australian Dictionary of Biography, Australia's pre-eminent dictionary of national biography

Businesses and organizations Banks African Development Bank (also AfDB), a multilateral development finance institution Agricultural Development Bank (disambiguation), several financial institutions: Agricultural Development Bank of Ghana Agricultural Development Bank of Pakistan Agricultural Development Bank of Trinidad and Tobago Asian Development Bank, a regional development bank

Other businesses and organizations Advanced Digital Broadcast, supplier of digital TV set-top-boxes for cable, satellite, terrestrial and telecommunications Amarillo Design Bureau, a company specializing in tactical and strategic board wargames Antonov Airlines (ICAO code designator)

Technology

Adaptive Driving Beams, a system that adapts a car's headlights to avoid glare New Zealand ADB class diesel multiple unit, a type of diesel railway vehicle used on Auckland's suburban network Advanced Debugger, a general-purpose debugger for Unix platforms Android Debug Bridge, a command-line tool for Android Apple Desktop Bus, a bit-serial computer bus for connecting low-speed devices to computers

Other uses Alarm Distress Baby Scale (ADBB) Adnan Menderes Airport in Izmir, Izmir Province, Turkey (IATA airport code ADB) Atauran (ISO 639-3 code: adb), of the Wetarese language of East Timor Approved Document B, the official building code guidance document on fire for England and Wales; see Building regulations in the United Kingdom