| Abbreviation | Definition |
|---|---|
| CNFK | Commander US Naval Forces Korea |
| CNFM | Commander Naval Forces Marianas |
| CNI | Commander Naval Installations |
| CNIC | Commander Naval Installations Command |
| CNIC | Commander Navy Installations Command |
| CNIC | Commander, Navy Installations Command |
| CNO | Chief of Naval |
| CNO | Chiefs of Naval Operations |
| CNP | Chief of Naval Personnel |
| CNPC | Commander Navy Personnel Command |
| CNR | Caldari Navy Raven |
| CNRC | Commander Navy Recruiting Command |
| CNRF | Commander Navy Reserve Force |
| CNRF | Commander Navy Reserve Forces |
| CNSA | Coronado Navy Swim Assn |
| CNSA | Coronado Navy Swim Association |
| COD | Carrier On-board Delivery |
| COFAG | Captain Of The Afterguard |
| COFMIZT | Captain Of The Mizzen Top |
| COFMT | Captain Of The Maintop |