| Acronym |
Agency/Organization/Definition |
| DAU |
Defense Acquisition University |
| DC |
Developed Country |
| DDN |
Defense Data Network |
| DEA |
Drug Enforcement Administration |
| DHS |
Department of Homeland Security |
| DIA |
Defense Intelligence Agency |
| DISA |
Defense Information Systems Agency |
| DLA |
Defense Logistics Agency |
| DNFSB |
Defense Nuclear Facilities Safety Board |
| DOD |
U.S. Department of Defense |
| DODEA |
Department of Defense Education Activity |
| DOE |
Department of Energy |
| DOL |
Department of Labor |
| DOT |
Department of Transportation |
| DSS |
Defense Security Service |
| DSN |
Defense Switched Network |
| DTRA |
Defense Treat Reduction Agency |
| DTSA |
Defense Technology Security Administration |
