| Abbreviation | Definition |
|---|---|
| DDF | Devastating Direct Fire |
| DDG | Draw Down Guidance |
| DDG | Dual Display Generator |
| DDG | Guided-Missile Destroyer |
| DDGMS | Deputy Director General Medical Services |
| DDI | Data Display Indicator |
| DDI | Deputy Director of Intelligence |
| DDI | Digital Display Indicator |
| DDJF | Defense Depot Jacksonville Florida |
| DDL | Data Definition Language |
| DDL | Data Design Language |
| DDL | Digital Data Link |
| DDL | Direct Down link |
| DDL | Document Distribution List |
| DDL | Dual Data Link |
| DDM | Designated Defensive Marksmanship |
| DDM | Digital Data Modem |
| DDMA | Defense Distribution Mapping Activity |
| DDMS | Deputy Director for Military Support |
| DDMS | Deputy Director Medical Services |