ACG

ACG may mean:

American College of Gastroenterology
American Comics Group, a comic-book publisher in the Golden Age of comic books
All Condition Gear, a trademarked brand name for outdoor clothing and equipment from Nike
Angle closure glaucoma
Ashby Computer Graphics, a video game developer now trading as Rare
The National Rail code for Acocks Green railway station, United Kingdom
A collective term used in Taiwan for Anime, comics, and games
A codon of Threonine in genome expression