ADB
- ADK/ADB class diesel multiple unit
- Active Dimension Battle
- Adaptive Driving Beams
- Adnan Menderes Airport
- Advanced Debugger
- Advanced Digital Broadcast
- African Development Bank
- Agricultural Development Bank (disambiguation)
- Agricultural Development Bank of Ghana
- Agricultural Development Bank of Pakistan
- Agricultural Development Bank of Trinidad and Tobago
- Allgemeine Deutsche Biographie
- Amarillo Design Bureau
- Android Debug Bridge
- Antonov Airlines
- Apple Desktop Bus
- Asian Development Bank
- Atauran
- Australian Dictionary of Biography
- Building regulations in the United Kingdom