AAV or Aav may refer to:

• Advantage Oil & Gas Ltd., a Canadian oil and gas company
• Allah Valley Airport (IATA airport code), in Allah Valley, Mindanao, Philippines
• Arab American Vehicles, a car assembler in Egypt
• Armstrong Studios, an Australian recording studio later renamed AAV

• African American Vernacular English
• Austroasiatic languages, a language group of Southeast Asia

• Anomalous Aerial Vehicle, a military term for an unidentified flying object
• Anti-aircraft vehicle, or self-propelled anti-aircraft weapon
• Assault Amphibious Vehicle or Amphibious Assault Vehicle, an amphibious tracked vehicle

• Aav (surname), Estonian surname
• Aníbal Acevedo Vilá, governor of Puerto Rico (2005-2008)

• Adeno-associated virus, a nonpathogenic virus used as a gene therapy tool
• Air admittance valve, a valve in a drain-waste-vent system
• Aire d'attraction d'une ville, a metropolitan statistical area used by the French national statistics office INSEE
• Another Angry Voice, a British political blog
• Vatican Apostolic Archive, Latin: Archivum Apostolicum Vaticanum

This disambiguation page lists articles associated with the title AAV.
If an internal link led you here, you may wish to change the link to point directly to the intended article.