| Acronym | Definition |
|---|
| UDD➣United Front for Democracy Against Dictatorship (Thailand) |
| UDD➣Universidad del Desarrollo (Chile) |
| UDD➣User-Defined Database |
| UDD➣User-Driven Development |
| UDD➣Unix to Unix Decoder |
| UDD➣Unmanaged Device Discovery |
| UDD➣User Diagnostics Disk |
| UDD➣Ultra Digidrive |
| UDD➣Universal Disk Drive |
| UDD➣User Data Document |
| UDD➣Unit Dose Dispensing |
| UDD➣Unpaid Domestic Duties (marriage registries) |
| UDD➣Union for Democracy and Development (Mali) |
| UDD➣Up Dharma Down (band) |
| UDD➣Underage Drinking and Driving |
| UDD➣Uniform Distribution of Deaths (actuarial models) |
| UDD➣Unconstrained Delay Data |
| UDD➣Urine Diversion Dehydration (toilet) |
| UDD➣Union Direkte Demokratie (German: Direct Democracy Union) |
| UDD➣Urine Detection Device (Singapore) |
| UDD➣Unidade de Derivação Digital |
| UDD➣Universal Data Dictionary |
| UDD➣Ultimate Daredevil (comic) |
| UDD➣User Documentation Description |
| UDD➣Underworld Death Dealers (World of Warcraft guild) |
| UDD➣Un-Merged Decision Depth |
| UDD➣Unified Development District |
| UDD➣Utility Distribution Diagram |
| UDD➣Unity Duty Destiny (Bionicle fan fiction) |
| UDD➣Uhrig Dynamical Decoupling (physics) |
| UDD➣Underwriting Decision Documentation (insurance) |