| Abbreviation | Definition |
|---|---|
| CNAD | Conference of National Armaments Directors |
| C-NAF | Component Numbered Air Force |
| CNASP | Chairman's Net Assessment for Strategic Planning |
| CNAVRES | Chief of Naval Reserve |
| CNC | Crime and Narcotics Center |
| CNCE | Communications Nodal Control Element |
| CND | Computer Network Defense |
| CND | Counter-Narcotics Division |
| CNDI | Commercial Non-Developmental Items |
| CNE | Computer Network Exploitation |
| CNE | Counter Narcotics Enforcement |
| CNET | Chief of Naval Education and Training |
| CNFK | Commander, U.S. Naval Forces Korea |
| CNG | Colorado National Guard |
| CNGB | Chief, National Guard Bureau |
| CNL | Combat Net Lan |
| CNLA | Cornish National Liberation Army |
| CNM | Classified Notice to Mariners |
| CNMD | Chinese National Missile Defence |
| CNMOC | Commander, Naval Meteorology and Oceanography Command |