AVL may refer to:
- Acadèmia Valenciana de la Llengua (Valencian academy of the language)
- Approved Vendor List
- The United Nations Audiovisual Library of International Law
- Aroostook Valley Railroad
- Asheville Regional Airport in North Carolina, IATA airport code
- Audio Visual Labs, once the leading supplier and innovator of computerized multimedia controllers
- Automatic Volume Limiter, limits the volume of a device such as an MP3 or CD player
- Automatic vehicle location
- AVL (Engineering Firm), Austrian-based automotive engineering consulting firm and research institute Anstalt für Verbrennungskraftmaschinen List
- AVL tree, a data structure used in computer programming
- American Vampire League, a political organization advocating for Vampire rights in the HBO show True Blood.
aVL may refer to:
- Lead augmented vector left (aVL), a voltage difference in electrocardiography