| Acronym | Definition |
|---|
| UCD | University College Dublin |
| UCD | User-Centered Design |
| UCD | Unicode Character Database |
| UCD | University of California at Davis |
| UCD | University of Colorado at Denver |
| UCD | University of Colorado at Denver (Denver, CO) |
| UCD | University City District (Philadelphia, PA) |
| UCD | Unión de Centro Democrático (Spanish Political Party) |
| UCD | Uniform Call Distributor |
| UCD | User Centered Design |
| UCD | Utilities Compact Disc |
| UCD | Universal Cd |
| UCD | Uniform Call Distribution |
| UCD | Upstream Channel Descriptor |
| UCD | Ultra Constant Discharge (lighting) |
| UCD | Urine Collection Device |
| UCD | Universal Call Distribution |
| UCD | United Companion Dog (UKC obedience title) |
| UCD | Underwood Conservation District |
| UCD | Union of Cambodian Democrats |
| UCD | Unités Communes de Dispensation (French: Common Units of Dispensation) |
| UCD | Usual Childhood Diseases |
| UCD | Umatilla Chemical Depot (Hermiston, Oregon) |
| UCD | Union Canadienne Démocratique (French) |
| UCD | Usable Completion Date |
| UCD | Universal Controller Device (MILES Component) |
| UCD | Unemployment Compensation Disbursement |
| UCD | Uncontested Dissolution of Marriage (legal) |
| UCD | Unresolvable Conflict Detection |
| UCD | Uncounted Departures (immigration) |