C
| C4I | Command, Control, Communications, Computer, and Intelligence |
| CAN | Correlation Analyst |
| CARS | Contingency Airborne Reconnaissance System |
| CAOC | Combined Air Operations Center |
| CBRN | Chemical, Biological, Radiological, or Nuclear |
| CCC | Combat Crew Communications |
| CDC | Career Development Course (AF) |
| CMIS | Computer Management Information Systems |
| CIGSS | Common Imagery Ground/Surface System |
| C&I | Communications & Information |
| CNVT | Computer Network Vulnerability Team |
| COS | Communications Operations Segment |
| CSAR | Combat Search and Rescue |
| CSEP | Communications Standardization and Evaluation Program |
D
| DCGS | Deployable Common Ground Station Distributed Common Ground Systems |
| DCM-M | Deployable Communications Module, Mike |
| DDS | Defense Dissemination System |
DE DE-D | Dissemination Element Dissemination Element-Deployable |
| DEROS | Date Eligible to Return from Overseas |
| DGS | Deployable Ground Station Distributed Ground Station |
| DGIF | Deployable Ground Intercept Facility |
| DLIP | Data Link Improvement Program |
| DISA | Defense Information Systems Agency |
DISC | DCGS Integration Support Contractor | | DODIIS | Department of Defense Intelligence Information System |
| DTS | Deployable Transit-cased System |