- ABN stands for Australian Business Number
- ABN stands for Advance Beneficiary Notice
- ABN stands for Asia Business News
- ABN stands for Airborne
- ABN stands for Abnormal
- ABN stands for Alabama Board of Nursing
- ABN stands for Amoda Broadcasting Network (TV; India)
- ABN stands for Agencia Bolivariana de Noticias (Spanish: Bolivarian News Agency, Venezuela)
- ABN stands for Absecon (Amtrak station code; Absecon, NJ)
- ABN stands for Automotive Broadcasting Network
- ABN stands for Algemene Bank Nederland
- ABN stands for Association of British Neurologists
- ABN stands for Autorité du Bassin du Niger (French: Niger Basin Authority)
- ABN stands for AT&T Business Network
- ABN stands for Australian Bibliographic Network
- ABN stands for Algemeen Beschaafd Nederlands
- ABN stands for Alaska Board of Nursing
- ABN stands for Albina Airport (airport code; Oregon)
- ABN stands for Alcock Brown-Neaves Group (Australia)
- ABN stands for Assumed Business Name
- ABN stands for Aerodrome Beacon (aviation, NOTAM)
- ABN stands for Asia Blogging Network
- ABN stands for Agri Broadcast Network (radio news network; Ohio)
- ABN stands for Assholes by Nature (band)
- ABN stands for Avivamiento Broadcasting Network (religious local TV station; Colombia)
- ABN stands for Angled Bed of Nails (connector type)
- ABN stands for African Broadcasting Network
- ABN stands for Alarm Broadband Network
- ABN stands for Africa Business Network
- ABN stands for African Biosciences Network (International Biosciences Network)
- ABN stands for Asahi Broadcasting Nagano Co., Ltd. (Japan)
- ABN stands for American Business Network (Sprint)
- ABN stands for Alliance of Boston Neighborhoods (Boston, Massachusetts)
- ABN stands for Acid-Base Neutrals
- ABN stands for American Board of Neurology
- ABN stands for Aluminium, Brass & Nickel (engines)
- ABN stands for Action Bets Network
- ABN stands for Alliance Business Network (various locations)
ABN