AGL may refer to:

Businesses AGL Energy, Australian energy company, successor to Australian Gas Light Company AGL Resources, an American utility company Atlanta Gas Light, a subsidiary of AGL Resources Australian Gas Light Company, a former Australian energy company

Science and technology Biology AGL gene, which codes for human glycogen debranching enzyme amylo- α- 1,6- glucosidase, 4- α- glucanotransferase (AGL), another name for the glycogen debranching enzyme

Computing Adobe Glyph List, a list of glyph names for Unicode characters Apple Graphics Library, the Apple API for OpenGL Automotive Grade Linux, an open operating system and framework for automotive applications A Graphics Language, BASIC language extension for control of Hewlett-Packard plotters

Other uses in science and technology Affine general linear group, a group of affine transformations in mathematics Artificial grammar learning, an investigative technique in cognitive psychology and linguistics Automatic Grenade Launcher, weapon for shooting grenades rapidly

Transport infrastructure Abergele & Pensarn railway station, UK (National Rail code AGL) Ampang Line, a rapid transit line in Malaysia Wanigela Airport in Oro Province, Papua New Guinea (IATA airport code AGL)

Other uses Lighthouse tender (US Navy hull classification symbol AGL) Above ground level Angola (ITU letter code AGL) "Animism: the Gods' Lake", a fictional location in Animism (TV series) Fembe language of Papua New Guinea (ISO 639-3 code agl)