AGL may refer to:

• 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

• 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

• A Graphics Language, BASIC language extension for control of Hewlett-Packard plotters
• 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

• Above ground level, in aviation
• 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

• AGL, the United States Navy hull classification symbol for a lighthouse tender
• Abergele & Pensarn railway station, UK (National Rail code AGL)
• Angola, ITU letter code
• Fembe language (ISO 639-3 code agl)
• "Animism: the Gods' Lake", a fictional location in Animism (TV series)

This disambiguation page lists articles associated with the title AGL.
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