ABN or abn may refer to:

Companies ABN AMRO Group, a Dutch bank group ABN AMRO, sometimes referred to as "ABN" in shorthand, is a Dutch state-owned bank Algemene Bank Nederland, a now-defunct Dutch bank

Radio, news and television organizations ABN Andhra Jyothi, a Telugu language news channel based in India Agri Broadcast Network, an Ohio-based agricultural radio news network ABN (TV station), the Australian Broadcasting Corporation's Sydney TV station ABNXcess, the sole cable television operator in Malaysia Asahi Broadcasting Nagano, a television station in Nagano Prefecture, Japan Asia Business News, a defunct business news channel Agencia Bolivariana de Noticias, the national news agency of Venezuela Avivamiento Broadcasting Network, a religious local TV station in Bogotá, Colombia AMCARA Broadcasting Network, a Philippine-based broadcast company in Quezon City, Philippines African Broadcast Network, a defunct African television network

Other organizations Alaska Board of Nursing, the regional board of nurses in the state of Alaska, US American Board of Professional Neuropsychology Anti-Bolshevik Bloc of Nations, an anti-Soviet Cold War group Aramaic Broadcast Network, part of the Tri-State Christian Television for some years Australian Bibliographic Network, former name of the Australian National Bibliographic Database, a shared library catalogue and service Niger Basin Authority (from its French name Authorité du Bassin du Niger), an intergovernmental organisation in West Africa

Transport infrastructure Absecon station, Amtrak station code ABN Albina Airstrip in Marowijne District, Suriname (IATA airport code ABN) Akabane Station (JR East station code), in Kita, Tokyo, Japan

Other uses ABN (hip hop duo), or Assholes by Nature, rappers Trae and Z-Ro; also their 2003 album Assholes by Nature Abua language, a Central Delta language of Nigeria Australian Business Number, a unique identifier issued to business entities by the Australian Taxation Office Algemeen Beschaafd Nederlands (Common Civilized Dutch), the near-obsolete name for now "Common Dutch"