CGX may refer to:
Cangitoxin, toxin purified from the venom of the sea anemone Bunodosoma cangicum CG(X), proposed U.S. cruiser class Chunga Airstrip, Chunga, Zambia, IATA airport code CGX Cineplex Entertainment, TSX code CGX CyberGraphX, ReTargetable Graphics API Meigs Field, Chicago, Illinois, FAA LID code CGX