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

Sports teams and leagues

• A.S. Roma, an Italian football club
• Amateurliga Saarland, highest football league in the state of Saarland (defunct)
• KK AS Basket, a Serbian basketball club
• Athletics (baseball), an American baseball team referred to as the A's

Transportation companies

• Alaska Airlines, IATA airline designator
  • Hawaiian Airlines, IATA airline designator that began in 2025 as part of merger with Alaska Airlines
• Voiturettes Automobiles A.S., a French-based car manufacturer in 1920s
• Towarzystwo Budowy Samochodów AS, a Poland-based car manufacturer in 1920s and 1930s

Other organizations

• Academia Sinica, the national academy of Taiwan
• Armée secrète (Belgium), a World War II resistance organization
• Armée secrète, a French resistance organization
• Akademiska Sångföreningen, an academic male voice choir of Helsinki, Finland

Vehicles

• AS Type A2, a sports car manufactured by Voiturettes Automobiles A.S.
• AS S1 and AS S2, a passenger car manufactured by Towarzystwo Budowy Samochodów AS
• Submarine tender (AS), a hull classification symbol for a kind of US Navy auxiliary ship

Academia

• Academia Sinica, the national academy of Taiwan
• AS-level (disambiguation)
• 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 routing prefixes
• Application server, a computer running back-end software
• The type conversion operator as, used in C# and Rust

Health and medicine

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

Natural sciences

• Altostratus, a kind of cloud
• Arsenic, a chemical element
• Tropical savanna climate

Units of measurement

• Arcsecond, 1⁄3600 of a degree, a unit of angular measurement
• Attosecond (as), 10⁻¹⁸ second, a subunit of time
• Attosiemens (aS), 10⁻¹⁸ siemens, a subunit of electric conductance

Other uses in mathematics, science and technology

• Abramowitz and Stegun, an informal name for the 1964 Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables
• Aggregate supply, in economics, the total supply of goods
• Almost surely, 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

Asia

• 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
• Assam, a state of India

Countries

• American Samoa (ISO 3166 code AS)
• Australia (obsolete NATO and FIPS country codes AS)
• 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
• Anno Societatis (A.S.), a calendar system used by 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"

See also

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