| Abbreviation | Definition |
|---|---|
| DERV | Diesel Engine Road Vehicle |
| DERW | Dummy End Rewind Bolt |
| DES | Double End Stud |
| DESS | Digitally Encoded Security System |
| DF | Damage Free |
| DF | Diamond Free |
| DF | Down Forward |
| DF | Dust Free |
| DFA | Design For Assembly |
| DFI | Direct Fuel Injection |
| DFIG | Double Fed Induction Generator |
| DFM | Diesel Fuel Marine engine |
| DFMEA | Design Failure Mode and Effects Analysis |
| DFPT | Diploma in Fish Products Technology |
| DFR | Design For Recycling |
| DFS | Diffuse Field Surround speaker |
| DFS | Durable Full Seat |
| DFU | Date of First Use |
| DG | Dangerous Goods |
| DG | Double Glass |