| Acronym | Definition |
|---|
| CNAC | Centro Nacional Autonomo de Cinematografia (Spanish: National Autonomous Cinematography Center; Venezuela) |
| CNAC | Centre National des Arts du Cirque (French: National Center of Circus Arts) |
| CNAC | Comité National Anti-Contrefaçon (French: National Anti-Counterfeiting Committee; est. 1995) |
| CNAC | Comité National d'Action pour la Sécurité et l'Hygiène dans la Construction (French: National Action Committee for Safety and Health in Construction; Belgium; est. 1965) |
| CNAC | China National Aviation Corporation |
| CNAC | Canadian Network for Asthma Care |
| CNAC | Cisco Network Admission Control |
| CNAC | Car Now Acceptance Company |
| CNAC | Center for Naval Analyses Corporation (Alexandria, VA) |
| CNAC | College News Association of the Carolinas |
| CNAC | Customs National Aviation Center (USCS) |
| CNAC | Confédération Nationale des Associations des Caféiculteurs (French: National Confederation of Associations of Growers) |
| CNAC | CCS (Common Channel Signaling) National Administration Center (AT&T) |
| CNAC | Cisco Network Asset Collector |
| CNAC | Contains No Artificial Colour (food product company; India) |