AN

An is an indefinite article in the English language; see also: a and an.

An, AN, aN, or an may also refer to:

Culture and language

• An (Mesopotamian mythology), a god in Sumerian and Babylonian mythology
• An (Mesopotamian mythology), a goddess in Sumerian mythology
• An (Chinese name)
• Ahn (Korean name)
• An (Shintō), a small table or platform used during Shinto ceremonies
• Anguttara Nikaya, one of the five oldest books in Buddhist literature
• Aragonese language's ISO 639-1:2002 language code
• AN Algemeen Nederlands (meaning "Common Dutch"), the official Dutch language, common to most people in the Netherlands and the Flemish community in Belgium
• An alternative romanisation for Ahn (Korean name)

Mathematics and science

• Acrylonitrile
• Anorexia Nervosa, an eating disorder
• Acanthosis nigricans, a skin condition
• A_n, a root system and its Dynkin diagram
• A_n, conventional notation for the alternating group
• Abbreviation of anode in electronic schematics
• AN, ammonium nitrate
• aN, the attonewton, an SI unit of force

Organizations

• Anime North, a Canadian anime convention
• The IATA airline designator for Ansett Australia, a major Australian airline group that is now defunct
• Apalachicola Northern Railroad's reporting mark
• Aryan Nations, a white supremacist religious organization
• Astronomische Nachrichten, or Astronomical Notes, an international Astronomy journal
• Australian National Railways - the formerly federal government owned Trans-Australia Railway, Central-Australia Railway, Country South Australia and Tasmanian Railways operator
• Avisa Nordland, a Norwegian newspaper
• Alleanza Nazionale, the Italian name for the National Alliance (Italy), a former political party in Italy
• The design office prefix for Antonov, a Ukrainian (formerly Soviet) aircraft manufacturing and services company

Placename abbreviations or codes

• Anderson County, Kansas state county code
• Andorra's obsolete NATO country code
• Angola's World Meteorological Organization country code
• Application Note Application Note (in engineering) most often seen as A.N.
• Netherlands Antilles' ISO country code
• Ancona, a province of Italy in the ISO 3166-2:IT code

Other

• An County, in Sichuan, China
• AN thread, a type of fitting
• a prefix used by the U.S. military for electronic equipment named under the Joint Electronics Type Designation System
• the romanization of the Japanese word 餡, meaning red bean paste
• an, an anagram generator for linux