| Abbreviation | Definition |
|---|---|
| DTTN | Distributed Tactical Test Network |
| DTTS | Defense Transportation Tracking System |
| DTUPC | Design To Unit Production Cost |
| DTV | Driver's Thermal Viewer |
| DTWG | Domestic Terrorism Working Group |
| DTY | Duty |
| DU | Death Unit |
| DU | Depleted Uranium |
| DUECE | Deployable Universal Combat Earthmover |
| DUFMS | Defense University For Military Sciences |
| DUI | Data Use Identifier |
| DUI | Distinctive Unit Insignia |
| DUI | Driving Under the Influence |
| DUKW | Designed in 1942, Utility, All-wheel drive, Dual-Tandem rear axles |
| DUKW | Duplex Universal Karrier, Wheeled |
| DUMB | Deep Underground Military Base |
| DUMB | Deep Underground Military Bunker |
| DUMTE | Dual-Use Multimedia Testbed Environment |
| DUNN-KEMPF | (Manual, company/platoon level simulation) |
| DUSA | Deputy Under Secretary of the Army |