AS

AS may refer to:

Science and technology

A. S. (automobile), a small French car in the 1920s
A.S. Design, a French car
A. S. (truck), a Dutch truck made in the 1920s to 50s
AS One, a German-build, but Liechtenstein-based sportscar
AS (1927), a Polish car made in end of the 20s
Acrylonitrile Styrene, copolymer plastic
ActionScript, a programming language originally developed by Macromedia and currently by Adobe for developing Flash and Flex applications
.as, the Internet country code top-level domain for American Samoa
.AS, the Reuters Instrument Code for Amsterdam
Unix as, an assembler program used on Unix systems
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's degree
Arsenic, chemical symbol
Australian Standard, usually followed by the standard number
Autonomous system (Internet), a collection of IP networks
Arcsecond, 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
AS, the hull classification symbol for submarine tenders

American Samoa, country code
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
Ås Hundred, a hundred of Västergötland in Sweden
Australia, obsolete NATO country code

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

As (coin), a Roman coin and weight unit
"As" (song), a song by Stevie Wonder
Diario AS, a Spanish daily sports newspaper
Anglo-Saxon, a progenitor language of modern English
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
Ayt Seghrouchen
Anabolic Steroids, AS is an abbreviation often used on online bodybuilding forums
Avenged Sevenfold, an American rock band