AS

AS or as may refer to:

Science and technology
 A. S. (car), a small French car built in the 1920s
 ActionScript, a programming language developed by Macromedia and Adobe
 Aggregate supply, the total supply of goods, in economics
 Almost surely or a.s., in probability theory, an event with probability 1
 Associate of Science, an American associate degree
 Arsenic, chemical symbol "As"
 Australian Standard, usually followed by the standard number
 Autonomous system (Internet), a collection of IP networks
 Arcsecond,  arcminute, a unit of angular measurement
 Attosecond or as, one trillionth (long scale) (10−18) or one quintillionth (short scale) (10−18) of a second, a unit of time
 Attosiemens or aS, one trillionth (long scale) (10−18) or one quintillionth (short scale) (10−18) of a siemens, a unit of electric conductance

Medicine
Angelman syndrome, a neuro-genetic disorder
Ankylosing spondylitis, arthritis of the spine and joints near to the spine
Aortic stenosis, a type of heart disease
Asperger syndrome, an autism spectrum disorder
Autism spectrum

Places
.as, the Internet country code top-level domain for American Samoa
As, Belgium, a municipality in Belgium
Ås, a municipality in Akershus county, Norway
Ås, Sør-Trøndelag, a village in Tydal municipality in Sør-Trøndelag county, Norway
Ås, Swedish name for Harju quarter in Helsinki, Finland
Aš, a town in the Czech Republic

People
Æsir are called "ás", "áss", or "ǫ́ss" in Norse.
Ossetians were called As or Asi by the Georgians and Russians in the past

Organizations
Aksjeselskap or A/S, a type of Norwegian stock-based company
Aktieselskab or A/S, a type of Danish stock-based company
Aktsiaselts, a type of Estonian stock-based company
Abilene and Southern Railway
Akademiska Sångföreningen or The Academic Male Voice Choir of Helsinki, a Finnish choir
Alaska Airlines, IATA airline designator
A.S. Roma, Italian football club based in Rome
Australian Standards
Diario AS, a Spanish sports newspaper

Other uses
As (Roman coin), a coin and weight unit
"As" (song), a song by Stevie Wonder
Anglo-Saxon, ancestor of modern English language
Anti-submarine warfare
Assamese language, ISO 639 alpha-2 language code
Adult Swim, an adult-oriented block of programming on Cartoon Network
AS Level, a qualification in the United Kingdom; half an A Level
Anabolic Steroids, AS is an abbreviation often used on online bodybuilding forums

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