| Abbreviation | Definition |
|---|---|
| DSM | Division Sergeant Major |
| DSM | Double Sight Monitor |
| DSMAC | Digital Scene-Matching Area Correlation |
| DSMC | Defense Systems Management College |
| DSN | Defense Subscriber Network |
| DSN | Defense Switched Network |
| DSNET | Defense Secure Network |
| DSNET-2 | Defense Secure Network-2 |
| DSO | Defensive Systems Officer |
| DSO | Deputy Supply Officer |
| DSO | Distinguished Service Order |
| DSOE | Deployment Schedule of Events |
| DSP | Defense Satellite Program |
| DSP | Defense Support Program |
| DSP | Digital Signal Processing |
| DSP | Digital Signal Processor |
| DSPD | Defense Support to Public Diplomacy |
| DSPE | Directory Structure Processing Engine |
| DSPL | Display System Programming Language |
| DSPM | Detailed Subsystem Performance Model |