| Abbreviation | Definition |
|---|---|
| DDC | Dependent Day Care |
| DDC | Division Data Center |
| DDCC | Department/Division Career Counselor |
| DDCI | Deputy Data Collection Integrator |
| DDCI | Deputy Director of Central Intelligence |
| DDCI/CM | Deputy Director of Central Intelligence for Community Management |
| DDCMP | Digital Data Communications Message Protocol |
| DDCS | Digital Data Communications Set |
| DDCU | D C-to- D C Converter Unit |
| DDD | Direct Distance Dial |
| DDDA | Defense Distribution Depot- Anniston |
| DDDDD | Deception, Disruption, Denial, Degradation, and Destruction |
| DDDDD | Demand Drive Direct Digital Dissemination |
| DDDS | Defense Data Dictionary System |
| DDEAMC | Dwight D. Eisenhower Army Medical Center (Augusta, Georgia) |
| DDEC | Daily Dental Emergency Calculator |
| DDED | Defense Distribution Expeditionary Depot |
| DDEP | Defense Development Exchange Program |
| DDESB | Department of Defense Explosive Safety Board |
| DDESB | Department of Defense Explosives Safety Board |