AS

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

Places

Aš, a town in the Czech Republic
Ås, Akershus, a municipality in Akershus county, Norway
As, Belgium, a municipality in * Ås, Akershus, 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
As-e Jadid (New As), Iran
As-e Qadim (Old As), Iran

Adult Swim, an adult-oriented block of programming on Cartoon Network
Akademiska Sångföreningen or the Academic Male Voice Choir of Helsinki, a Finnish choir
Diario AS, a Spanish sports newspaper

as (Unix), generic name for the assembler program as used on Unix systems
.as, the Internet country code top-level domain for American Samoa
ActionScript, a programming language originally developed by Macromedia and currently by Adobe for developing Flash and Flex applications
Alpha Sapphire, a Pokémon video game
Authentication server, a server that provides authentication services to users
Autonomous system (Internet), a collection of IP networks

Almost surely or a.s., in probability theory, an event with probability 1
Arcsecond, ¹⁄₆₀ arcminute, a unit of angular measurement
Arsenic (As), the element of atomic number 33
Associate of Science, an American Associate degree
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

Adrenergic system, a part of nervous system
Angelman syndrome, a neuro-genetic disorder
Ankylosing spondylitis, an autoimmune degenerative disease of the spine and related joints
Aortic stenosis, a valvular heart disease
Asparagine synthase (glutamine-hydrolysing), an enzyme
Asperger syndrome, an autism spectrum disorder
Autism spectrum

A.S., Anno Societatis, a calendrical system used in the Society for Creative Anachronism
Aggregate supply, the total supply of goods, in economics
Anabolic Steroids, AS is an abbreviation often used on online bodybuilding forums
Annunciation Style (A.S.), used to denote dates documented in British History falling before March 25 for any year before 1752, that are now considered to be in the following years with the adoption of January 1 as New Year's Day.
Anti-submarine warfare
As (cuneiform) sign
Aš (cuneiform) sign, pronounced similarly
As (Roman coin), a coin and weight unit
"As" (song), a song by Stevie Wonder
AS, NATO country code for Australia
AS, the United States Navy hull classification symbol for "submarine tender"
AS-level (disambiguation)
Æsir (also called "ás", "áss", or "ǫ́ss" in Norse) member of the pantheon in Norse religion
Assamese language, ISO 639 language code
Ossetians were called As or Asi by the Georgians and Russians in the past
ʿAlayhi s-salām, Arabic for "Peace be upon him", commonly found in Islamic writings after the name of an archangel or prophet other than Muhammad, e.g., "Ibrahim (AS)"