| Acronym | Definition |
|---|
| CMAC➣Cipher-Based Message Authentication Code |
| CMAC➣Centralized Maintenance and Administration Center |
| CMAC➣Cipher Based Mac |
| CMAC➣Compression Mac |
| CMAC➣Certified Management Accountants of Canada |
| CMAC➣Cerebellar Model Articulation Controller |
| CMAC➣Christian and Missionary Alliance in Canada |
| CMAC➣Cambodia Mine Action Centre |
| CMAC➣Canadian Marine Advisory Council |
| CMAC➣Confectionery Manufacturers Association of Canada |
| CMAC➣Capital Military Assistance Command |
| CMAC➣Contemporary Medical Archives Centre |
| CMAC➣Centre Meteorologique Aeronautique du Canada (French: Aeronautical Meteorological Center of Canada) |
| CMAC➣Columbia Marine Aquarium Club |
| CMAC➣Cerebella Model Arithmetic Computer |
| CMAC➣Conference & Meeting Assistance Corporation |
| CMAC➣Christian Mission Aid Canada |
| CMAC➣CHAMPUS Maximum Allowable Cost |
| CMAC➣Cryptomaterial Management and Assistance Centre (Canadian government) |
| CMAC➣Central Management Army Commissaries |
| CMAC➣Chemical & Molecular Analysis Centre |
| CMAC➣CHAMPUS (Civilian Health and Medical Program of the Uniformed Services) Maximum Allowable Charges (healthcare; US DoD) |