- AGX stands for Alt.Games.Xtrek (newsgroup)
- AGX stands for Abridged Generation X (Yu-Gi-Oh!)AGX Agribrands International, Inc. (stock symbol; St. Louis, MO)
- AGX stands for Auto Glass Expo (International Autobody Congress and Exposition)
- AgX stands for Silver Zeolite Cartridge (photographic and light sensitive coating)
AGX