AVN may refer to:

Medicine Atrioventricular node, special region of conducting tissue in the heart Avascular necrosis, medical condition

Transport Air Vanuatu, by ICAO airline code Avignon Airport, in southeastern France Avonmouth railway station, UK, by National Rail code

Companies and organisations AVN (magazine), Adult Video News, trade magazine for the pornographic industry AVN (Albania), television network Australian Vaccination-risks Network, anti-vaccination lobby group FK AVN, former name of FK ASK (1923–1970), former Latvian football club Agencia Venezolana de Noticias, Venezuelan state news agency Australian Army Aviation

Other uses Academy of Military Sciences (Akademii Voyennykh Nauk—AVN), in Moscow Avon (county), historic county in England, Chapman code AVN Award, American pornographic film award Alien vs Ninja, 2010 Japanese film Audio-Visual Navigation, feature of some motor vehicles