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 * , an academic male voice choir of Helsinki, Finland * As (newspaper), ''As'' (newspaper), a Spanish sports newspaper * As (song), "As" (song), by Stevie Wonder * ''As'', a 1896 novel by Adolf Dygasiński * As the Dog, a sculpture in Warsaw, Poland

Business legal structures

* , a Czech form of joint-stock company * , a Slovak form of joint-stock company * or ''A/S'', a type of Danish stock-based company * or ''AS'', a type of Norwegian stock-based company

Businesses and organizations

* A.S. Roma, an Italian football club * Alaska Airlines, IATA airline designator * Armée secrète (Belgium), (Belgium), a World War II resistance organization * KK AS Basket, a Serbian basketball club * , a French resistance organization * Athletics (baseball), an American baseball team referred to as the A's * Australian Standards, a standards organisation established in 1922 * 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 Sharp (programming language), C# and Rust (programming language), 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

Units of measurement

* Arcsecond, minute of arc, 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 and science

* ''Abramowitz and Stegun'', a mathematical reference work * Aggregate supply, in economics, the total supply of goods * Almost surely or a.s., in probability theory * Arsenic, symbol As, a chemical element * ''As'' (beetle), a genus in family Cerylonidae * Tropical savanna climate, labelled ''As'' or ''Aw''

Places

Europe

* , a town in the Czech Republic * , Norway * As, Belgium, in Limburg * , Norway * , Swedish name for the quarter in Helsinki, Finland * As, Ukraine (formerly known as Proletarka), a village in Ukraine

Other places

* (, "New As"), a village in East Azerbaijan Province, Iran * (, "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

Religion

* (singular: , , ), one of the pantheon of Norse gods * ' (), Arabic for "Peace be upon him", post-nominal posthumous Islamic honorific

Other uses

* As (Roman coin), a coin and unit of weight * A.S., , a calendrical system used in the Society for Creative Anachronism#History, Society for Creative Anachronism * Anti-submarine warfare, A/S * Amateurliga Saarland, highest football league in the state of Saarland (defunct) * Old name for Ossetians, "As" or "Asi" * A US Navy hull classification symbol: List of auxiliaries of the United States Navy#Submarine tenders (AS), Submarine tender (AS) * Altostratus, a cloud that is sometimes abbreviated as As. * AS, Indonesian abbreviation for United States