AV

AV, Av or A.V. may refer to:

Arts and entertainment

 * The abbreviation of audiovisual, possessing both a sound and a visual component
 * A.V. (film), a 2005 Hong Kong film directed by Pang Ho-Cheung
 * Adult video, an alternative name/synonym of a pornographic film
 * AV The Hunt, a 2020 Turkish thriller film directed by Emre Akay

Businesses and organizations

 * America Votes, an American 501(c)4 organization that promotes progressive causes
 * Ambulance Victoria, an ambulance service operated in the Australian state of Victoria
 * Anonymous for the Voiceless, a grassroots animal rights organization specializing in street activism
 * Aston Villa F.C., an English professional football club
 * AV Akademikerverlag GmbH & Co. KG an imprint of the German group VDM Publishing (now OmniScriptum)
 * Avaya, a technology company formerly listed on the New York Stock Exchange with symbol "AV"
 * Avianca (IATA airline code AV)
 * Aviva, British insurance company, listed on the New York Stock Exchange and London Stock Exchange as "AV"
 * AeroVironment, manufacturer of unmanned military aircraft and systems
 * Amusement Vision, the former name of Ryu Ga Gotoku Studio

People

 * Av or Avrum Gross (1936–2018), American lawyer and Attorney General of Alaska
 * Av or Avrom Isaacs (1926–2016), Canadian art dealer
 * Av Westin (1929–2022), American television producer

Places

 * Anguilla (FIPS country code and obsolete NATO diagram AV)
 * Antelope Valley, a valley in Southern California
 * Province of Avellino, a province of Italy

Anatomy and medicine

 * Aerobic vaginitis, vaginal infection associated with overgrowth of aerobic bacteria
 * Arteriovenous (disambiguation)
 * Atrioventricular (disambiguation)

Electronics and computing

 * Access violation, a computer software error
 * Age verification, system for checking a user's age
 * Antivirus software, used to prevent, detect and remove malicious software
 * Audio and video connector, a cable between two devices
 * Analog video
 * AV Linux, a Linux-based operating system

Fluid dynamics

 * Annular velocity, speed of the drilling fluid's movement in a column called an annulus in oil wells
 * Apparent viscosity, shear stress divided by shear rate

Vehicles

 * AV (cyclecar), a British cyclecar manufactured between 1919 and 1924
 * Bavarian A V, an 1853 steam locomotive model
 * A US Navy hull classification symbol: Seaplane tender (AV)
 * Autonomous vehicles

Other uses in science and technology

 * A-type main-sequence star, in astronomy, abbreviated A V
 * Aperture value mode, setting on photo cameras that allows to choose a specific aperture value

Other uses

 * Alternative vote, an electoral system used to elect a single winner from a field of more than two candidates
 * Approval voting, a non-ranking vote system
 * Authorised Version of the Bible (also known as King James Version)
 * Av (month), a month in the Hebrew calendar
 * av, the Avar language's ISO 639-1 code
 * Av. or Ave, an abbreviation for Avenue (landscape)
 * Ꜹ or AV from Latin aurum (avrvm), a numismatic abbreviation for "gold"
 * A.V., the putative mark of ébéniste Adam Weisweiler
 * Aviation, abbreviated Av in military use
 * Andhra Vidyalaya College, aka A. V. College, a school in Hyderabad, India