As

As, AS, A. S., A/S or similar may refer to:

Art, entertainment, and media

• A. S. Byatt (born 1936), English critic, novelist, poet and short story writer
• Adult Swim, a programming block on Cartoon Network
• Akademiska Sångföreningen, an academic male voice choir of Helsinki, Finland
• As (newspaper), a Spanish sports newspaper
• "As" (song), by Stevie Wonder
• As, a 1896 novel by Adolf Dygasiński
• As the Dog, a sculpture in Warsaw, Poland

Business legal structures

• Akciová společnost (a.s.), a Czech form of joint-stock company
• Akciová spoločnosť (a.s.), a Slovak form of joint-stock company
• Aktieselskab or A/S, a type of Danish stock-based company
• Aksjeselskap or AS, a type of Norwegian stock-based company

Businesses and organizations

• A.S. Roma, an Italian football club
• Academia Sinica, the national academy of Taiwan
• Alaska Airlines, IATA airline designator
  • Hawaiian Airlines, IATA airline designator that began in 2025 as part of merger with Alaska Airlines
• Amateurliga Saarland, highest football league in the state of Saarland (defunct)
• Armée secrète (Belgium), a World War II resistance organization
• KK AS Basket, a Serbian basketball club
• Armée secrète, a French resistance organization
• Athletics (baseball), an American baseball team referred to as the A's
• Voiturettes Automobiles A.S., a French-based car manufacturer in 1920s
  • AS Type A2, a sports car manufactured by Voiturettes Automobiles A.S.
• Towarzystwo Budowy Samochodów AS, a Poland-based car manufacturer in 1920s and 1930s
  • AS S1 and AS S2, a passenger car manufactured by Towarzystwo Budowy Samochodów AS

Education and research

• Academia Sinica, the national academy of Taiwan
• AS-level (disambiguation), any of several uses in education
• Associate of Science, an American academic degree

Language

• As language, a language of West Papua, Indonesia
• as, ISO 639-1 code for the Assamese language of India
• As (cuneiform), a written character
• Aš (cuneiform), a written character

Mathematics, science and technology

Computing

• as (Unix), an assembler program
• .as, the Internet country code top-level domain for American Samoa
• ActionScript, for Flash and Flex applications
• Autonomous system (Internet), a collection of IP networks
• Application server, a computer running back-end applications
• the type conversion operator as, used in C# and Rust

Health and medicine

• Angelman syndrome, a neuro-genetic disorder
• Ankylosing spondylitis, a type of arthritis
• Aortic stenosis, a valvular heart disease
• Asparagine synthase (glutamine-hydrolysing), an enzyme
• Asperger syndrome, an autism spectrum disorder
• Auricular splint, a custom-made medical device used as part of ear surgery

Natural sciences

• As (beetle), a genus in family Cerylonidae
• Altostratus, a cloud that is sometimes abbreviated as As
• Arsenic, symbol As, a chemical element
• Tropical savanna climate, labelled As or Aw

Units of measurement

• Arcsecond, 1⁄60 arcminute, a unit of angular measurement
• Attosecond or as, 10⁻¹⁸ second, a subunit of time
• Attosiemens or aS, 10⁻¹⁸ siemens, a subunit of electric conductance

Other uses in mathematics, science and technology

• Abramowitz and Stegun, a mathematical reference work
• Aggregate supply, in economics, the total supply of goods
• Almost surely or a.s., in probability theory

Places

Europe

• Aš, a town in the Czech Republic
• Ås, Akershus, Norway
• As, Belgium, in Limburg
• Ås, Sør-Trøndelag, Norway
• Ås, Swedish name for the Harju quarter in Helsinki, Finland
• As, Ukraine (formerly known as Proletarka), a village in Ukraine

Other places

• As-e Jadid (اس جديد, "New As"), a village in East Azerbaijan Province, Iran
• As-e Qadim (اس قديم, "Old As"), a village in East Azerbaijan Province, Iran
• American Samoa (ISO 3166 code AS)
  • .as, the Internet country code top-level domain for American Samoa
• Australia (obsolete NATO and FIPS country codes AS)
• Assam, a state of India
• United States (abbreviated "AS" in Indonesian)

Religion

• Æsir (singular: ás, áss, ǫ́ss), one of the pantheon of Norse gods
• ʿAlayhi s-salām (عليه السلام), Arabic for "Peace be upon him", post-nominal posthumous Islamic honorific

Other uses

• As (Roman coin), a coin and unit of weight
• A.S., Anno Societatis, a calendrical system used in the Society for Creative Anachronism
• Anti-submarine warfare, A/S
• Australian Standards, the technical standards developed by Standards Australia
• Old name for Ossetians, "As" or "Asi"
• A US Navy hull classification symbol: Submarine tender (AS)

See also

• Aas (surname)
• All pages with titles beginning with As
• All pages with titles containing As