| Abbreviation | Definition |
|---|---|
| CDRR | Contract Documentation Requirements Records |
| CDS | Central Data System |
| CDS | Closeout Door System |
| CDS | Collision Detector System |
| CDS | Command and Data System |
| CDS | Control Data System |
| CDS | Coronal Diagnostic Spectrometer |
| CDSC | Communications Distribution and Switching Center |
| CDSCC | Canberra Deep Space Communication Complex |
| CDT | Central Daylight Time |
| CDT | Command Descriptor Table |
| CDT | Compressed Data Tape |
| CDT | Configuration Data Table |
| CDT | CountDown Time |
| CDU | Computer Display Unit |
| CDU | Control and Display Unit |
| CDU | Coupling Data Unit |
| CDU | Coupling Display Unit |
| CDU | CRT (Cathode Ray Tube) Display Unit |
| CDW | Command Data Word |