CIAC may refer to: Athletic conferences Carolinas Intercollegiate Athletic Conference, southeastern United States Connecticut Interscholastic Athletic Conference Central Intercollegiate Athletic Conference, Kansas and Missouri Other uses Clark International Airport Corporation, Pampanga, Philippines Community in a Cube, a housing development in Middlesbrough, United Kingdom Computer Incident Advisory Capability, at the United States Department of Energy CRACK International Art Camp, Rahimpur, Kushtia, Bangladesh