| Abbreviation | Definition |
|---|---|
| DDA | Document (Interface Control Document) Departure Authorization |
| DDAS | Digital Data Acquisition System |
| DDC | Data Distribution Center |
| DDC | Defense Documentation Center |
| DDC | Digital Data Cell |
| DDD | Design Definition Document |
| DDD | Display Decoder Drive |
| DDDL | Digital Data DownLink |
| DDDU | Digital Decoder Driver Unit |
| DDF | Data Distribution Facility |
| DDFM | Data Distribution Facility Manager |
| DDI | Dedicated Display Indicator |
| DDI | Discrete Data Input |
| DDIS | Data Depository Index System |
| DDL | Data DownLink |
| DDM | Data Display Module |
| DDM | Data Display Monitoring |
| DDM | Discrete Data Management |
| DDMS | DOD Manager for Space Shuttle Support |
| DDN | Data Delivery Notice |