| Abbreviation | Definition |
|---|---|
| CRS | Combined Reporting System |
| CRS | Communications Relay Set |
| CRS | Container Recovery System |
| CRS | Coordinator for Reconstruction and Stabilization |
| CRS | Correctional Reporting System |
| CRSD | Continuously Refreshed Supply And Demand |
| CRSTIAC | Cold Regions Science and Technology |
| CRT | Cathode Ray Tube |
| CRT | Contingency Response Team |
| CRT | Counter Rotating Tines |
| CRTC | Cold Region Test Center |
| CRTC | Combat Readiness Training Center |
| CRTD | Commanders Real Time Tactical Display |
| CRTS | Casualty Receiving and Treatment Ship |
| CR-UAV | Close-Range Unmanned Aerial Vehicle |
| CRW | Contingency Response Wing |
| CRWG | Computer Resources Working Group |
| CRYPTO | Cryptographic |
| CS | Call Sign |
| CS | Chaplain Service |