# 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
* Arun Vijay (born 1977), Indian actor

## Places

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

## 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 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