| Abbreviation | Definition |
|---|---|
| DATOC | Division Artillery Tactical Operations Center |
| DATSS | Development and Test Support System |
| DATU | Data Adapter Termination Unit |
| DATU | Direct Access Test Unit |
| DAU | Defense Acquisition University |
| DAV | Disabled American Veteran |
| DAVN | Division Aviation |
| DAVP | Doctrinal Audio- Visual Program |
| DAWE | Division Army Warfighting Exercise |
| DAWE | Division XXI Advanced Warfighter Experiment |
| DAWIA | Defense Acquisition Workforce Improvement Act |
| DAWN | Department of the Army WWMCCS Network |
| DAWS | Defense Automated Warning System |
| DB | DataBase |
| DB | Dirty Bastard |
| DB | Disciplinary Barracks |
| DBA | DataBase Administrator |
| DBA | Dutch-Belgian Army |
| DBBI | Double Bay Box Igloo |
| DBC | Digital Battlefield Communications |