| Abbreviation | Definition |
|---|---|
| CBMCB | Chief Boatswain's Mate (construction Battalion) |
| CBMCBB | Chief Boatswain's Mate (construction Battalion-b) |
| CBMCBS | Chief Boatswain's Mate (construction Battalion-s) |
| CBMSRC | Chief Boatswain's Mate (ship Repair, Crane Operator) |
| CBMSRR | Chief Boatswain's Mate (ship Repair, Rigger) |
| CBMSRS | Chief Boatswain's Mate (ship Repair, Canvasman) |
| CC | Carpenter And Calker |
| CCG | China Coast Guard |
| CCK | Chief Cook |
| CCM | Chief Carpenter's Mate Chief Petty Officer |
| CCMA | Chief Carpenter's Mate (aviation) |
| CCMCB | Chief Carpernter's Mate (construction Battalion) |
| CCS | Chief Commissary Steward |
| CCSTD | Chief Commissary Steward |
| CD1 | Driver Petty Officer 1st Class |
| CD2 | Driver Petty Officer 2nd Class |
| CD3 | Driver Petty Officer 3rd Class |
| CDC | Driver Chief Petty Officer |
| CDCA | Driver Constructionman Apprentice |
| CDCN | Driver Constructionman |