| Abbreviation | Definition |
|---|---|
| RCACC | Royal Canadian Army Cadet Corps |
| RCACS | Royal Canadian Air Cadet Squadron |
| RCAF | Royal Cambodian Armed Forces |
| RCAG | Remote Control Air-Ground |
| RCAS | Regimental Combat Aviation Squadron |
| RCAS | Reserve Component Automation System |
| RCASC | Royal Canadian Army Service Corps |
| RCAT | Regional Counterdrug Analysis Team |
| RCB | Red Cambodian Blood |
| RCB | Rogue Cavaliers Brigade |
| RCC | Regional Contracting Center |
| RCC | Relocation Coordination Center |
| RCCPDS | Reserve Component Common Personnel Data System |
| RCD | Residual Current Device |
| RCE | Regional Code Enhancement |
| RCE | Regional Command East |
| RCE | Royal Canadian Engineers |
| RCEM | Regional Contingency Engineering Management |
| RCF | Repair Cycle Float |
| RCG | Regulation Coast Guard |