Ans or ANS or ''variation'', may refer to:

Places

* Ans, Belgium, a municipality in Belgium * Ans, Denmark, a village in Denmark * Angus, Scotland, UK; a council area by its Chapman code * Ainsdale railway station, England, UK (by station code ANS) * Andahuaylas Airport, Peru (by IATA airport code ANS)

People

* Ans (given name), a Dutch feminine given name * Anna Nicole Smith, American model and actress

* Academy of Natural Sciences of Philadelphia, Pennsylvania, United States * Astronomical Netherlands Satellite, a Dutch satellite * American Name Society * American Nuclear Society * American Numismatic Society, formerly the American Numismatic and Archaeological Society * ANS Group of Companies, a news organization in Azerbaijan * , a Cambodian resistance group; see Coalition Government of Democratic Kampuchea * Audubon Naturalist Society, an American environmental organization

* Adrenergic nervous system, adrenaline and noradrenaline neurotransmitters distribution in human body * 8-Anilinonaphthalene-1-sulfonic acid, a fluorescent chemical compound used as a molecular probe * Anthocyanidin synthase, an enzyme in the leucocyanidin biosynthesis pathway * Approximate number system, a hypothesized physiological basis for the sense of number * Autonomic nervous system, part of the peripheral nervous system in the body * L-Aspartate-nitro-succinate pathway for production of nitrite

* , an unofficial file extension for ANSI art * Advanced Network and Services, a non-profit network service provider in the 1990s * American National Standards, defined by the American National Standards Institute * ''ans'', a variable in calculators referring to the most recent answer * ANS carriage control characters (or ASA control characters), for computer line printers * Asymmetric numeral systems, coding in data compression * Authoritative name server, a DNS server * Artificial neural system, or Artificial neural network * Air Navigation Services, as delivered by an Air Navigation Service Provider (ANSP) * Apple Network Server, a late 1990s AIX based server machine from Apple Inc.

* ''ANS'' (album), a box set from the British band Coil * ANS synthesizer, a Russian photoelectric musical instrument

* Al Ansar FC, a Lebanese association football club * Amman National School, in Amman, Jordan * Ansvarlig selskap, a Norwegian personal responsibility company model * '' Algemeen Nijmeegs Studentenblad'', a Dutch student magazine * '' Akademia Nauk Stosowanych'', a vocational university in Nowy Targ, Poland