- AGK stands for Angry German Kid
- AGK stands for Auto Gordian Knot (software)
- AGK stands for Astronomische Gesellschaft Katalog (Astronomical Society Catalog, Germany)
- AGK stands for Acylglycerol Kinase (enzyme)
- AGK stands for Abramovsky-Gribov-Kancheli (physics)
- AGK stands for Affordable Go Karts (Santa Barbara, CA)
- AGK stands for Access Gatekeeper
AGK