ABN
- ABN (TV station)
- ABN (hip hop duo)
- ABN AMRO
- ABN AMRO Group
- ABN Andhra Jyothi
- ABNXcess
- AMCARA Broadcasting Network
- Absecon station
- Abua language
- Agencia Bolivariana de Noticias
- Agri Broadcast Network
- Akabane Station
- Alaska Board of Nursing
- Albina Airstrip
- Algemeen Beschaafd Nederlands
- Algemene Bank Nederland
- American Board of Professional Neuropsychology
- Anti-Bolshevik Bloc of Nations
- Asahi Broadcasting Nagano
- Asia Business News
- Australian Business Number
- Australian National Bibliographic Database
- Avivamiento Broadcasting Network
- Niger Basin Authority
- Tri-State Christian Television