AGC is a TLA which may stand for:

• Alpha Group Center
• American Greetings Corporation
• AGC, anti-gravity carrier , see Gridlinked
• Applied Global Cogeneration
• Asahi Glass Co., Ltd. of Japan
• Asserbo Golf Club of Denmark
• Associated General Contractors of America
• Associated Gospel Churches
• Association of Graphic Communications
• Australian Guarantee Corporation
• Automatic gain control
• Automatic generation control
• Apollo Guidance Computer
• Active Galactic Core
• the US Navy hull classification symbol for amphibious force flagships