CATC may refer to:
Carnitine O-acetyltransferase, an enzyme Catapult C, an electronic design automation product CATC Design School, in Australia Central Arkansas Telephone Cooperative Civil Aviation Technology College, Iran Civil Aviation Training Center, Iran College of Air Traffic Control, in the United Kingdom Combined Arms Training Centre, of the Australian Army Confédération africaine des travailleurs croyants (disambiguation), various trade unions in Africa