| Abbreviation | Definition |
|---|---|
| DFRT | Defence Force Remuneration Trubunal |
| DFRU | Digital Frequency Reference Unit |
| DFS | Direction Finding Subsystem |
| DFSA | Designated Finance Support Activity |
| DFSC | Defense Fuel Supply Center |
| DFSO | Division Finance Support Officer |
| DFSP | Defense Fuel Supply (or Storage) Point |
| DFSR | Detailed Functional System Requirement |
| DFSW | Direct Fire Support Weapon |
| DFSW | Direct Fire Support Weapons |
| DFT | Deployment For Training |
| DFTC | Defence Forces Training Centre |
| DFTS | Defense Fixed Telecommunications Service (UK) |
| DFW | Defenders Of Frigid Weaponry |
| DG | Defense Guidance |
| DG | Director General (Medical Services) |
| DG | Double Gun |
| DGAMS | Director General Army Medical Services |
| DGCS | Downsized Ground Control Station |
| DGDP | Director General of Defense Procurement |