CATC
CATC may refer to:
- Chinese Association on Smoking Control
- Civil Aviation Technology College
- Civil Aviation Training Center, a UNDP-founded facility for training students in private and commercial piloting and regular air service, located in Iran, with bases in Thailand, Tehran, Ahwaz, Mashhad, Shiraz, Esfahan and Tabriz
- Confédération Syndicale du Congo
- Catapult C Synthesis
- Carnitine O-acetyltransferase, an enzyme
- CATC AB, A provider of ship automation systems