| Acronym | Definition |
|---|
| DFU | Deutsche Friedensunion (German: German Peace Union) |
| DFU | Device Firmware Upgrade (or Update) |
| DFU | Device Firmware Upgrade |
| DFU | Directions For Use |
| DFU | Dansk Folkepartis Ungdom (Youth of the Danish People's Party) |
| DFU | Data File Utility |
| DFU | Danmarks Fiskeriundersøgelser |
| DFU | Diabetic Foot Ulcer |
| DFU | Danmarks Farmaceutiske Universitet |
| DFU | Direct File Update |
| DFU | Dansk Faldskærms Union |
| DFU | Drainage Fixture Unit (plumbing) |
| DFU | Dry Filter Unit |
| DFU | Don't forget Units |
| DFU | Demand Forecast Unit |
| DFU | Dictionnaire du Français Usuel |
| DFU | Dead Fetus in Utero |
| DFU | Data Filter Unit |
| DFU | Dumb Fool User |
| DFU | Don't Flip Up (polite form) |
| DFU | DragonFable Unlimited |
| DFU | Dummy Firing Unit |
| DFU | Design Follow-Up (software engineering) |
| DFU | Down Flow Unit |