ADB

• Antonov Airlines (ICAO code designator)
• IATA airport code for Adnan Menderes Airport in Izmir, Izmir Province, Turkey

• 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

• Adaptive Driving Beams, a system that adapts a car's headlights to avoid glare
• Advanced Debugger, a general-purpose debugger for Unix platforms
• Advanced Digital Broadcast, supplier of digital TV set-top-boxes for cable, satellite, terrestrial and telecommunications
• Android Debug Bridge, a command-line tool for Android
• Apple Desktop Bus, a bit-serial computer bus for connecting low-speed devices to computers

• Active Dimension Battle, a battle system in computer gaming
• Amarillo Design Bureau, a company specializing in tactical and strategic board wargames

• Allgemeine Deutsche Biographie, a biographical reference work in the German language
• Approved Document B, the official building code guidance document on fire for England and Wales; see Building regulations in the United Kingdom
• Australian Dictionary of Biography, Australia's pre-eminent dictionary of national biography

• New Zealand ADB class diesel multiple unit, a type of diesel railway vehicle used on Auckland's suburban network
• Atauran (ISO 639-3 code: adb), of the Wetarese language of East Timor

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