| Abbreviation | Definition |
|---|---|
| DFF | Delta Forces Finest |
| DFI | Data Field Identifier |
| DFL | Data Field Line |
| DFLP | Defence Force Leave Plan |
| DFLP | Defense Foreign Language Program |
| DFM | Design For Manufacturing |
| DFM | Deterrent Force Module |
| DFMO | Division Financial Management Office |
| DFO | Dining Facility Operation |
| DFO | Disaster Field Office |
| DFP | Direct Fire Periscope |
| DFR | Defense Fuel Region |
| DFR | efense Fuel Region |
| DFR/E | Defense Fuel Region, Europe |
| DFR/ME | Defense Fuel Region, Middle East |
| DFRB | Defence Force Retirement Benefits |
| DFRB | Defence Forces Retirement Benefits |
| DFRIF | Defense Freight Railway Interchange Fleet |
| DFRMO | Defence Fire Risk Management Organisation |
| DFRT | Defence Force Remuneration Tribunal |