Arts and entertainment
* The abbreviation ofBusinesses 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 StudioPeople
* 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 * Arun Vijay (born 1977), Indian actor * AV Prafullachandra, Indian music composerPlaces
*Science and technology
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 systemFluid 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 rateVehicles
* 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 vehiclesOther 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 valueOther 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) * or AV from Latin ''aurum'' (''avrvm''), a numismatic abbreviation for "gold" * A.V., the putative mark of ''ébéniste'' Adam Weisweiler *See also
* 2023 AV, an asteroid that passed closed to the Earth in 2023 * A5 (disambiguation) * α5 (disambiguation) * AV idol, a type of Japanese porn star * * {{disambiguation Masculine given names Hypocorisms