| Abbreviation | Definition |
|---|---|
| UCD | University of California at Davis |
| UCD | University of California Davis |
| UCD | University of Colorado Denver |
| UCD | University of Cow Dung |
| UCDA | University College Dublin Archives |
| UCDB | Universidade Catolica Dom Bosco |
| UCDC | University Child Development Center |
| UCDC | University Curriculum and Degree Committee |
| UCDC | University of California-District of Columbia |
| UCDI | University of Chicago Democracy Initiative |
| UCDP | University Committee on Distinguished Professorships |
| UCDP | Uppsala Conflict Data Program |
| UCDW | University of California Data Warehouse |
| UCE | Universidad Central del Este |
| UCE | University Center for the Environment, Harvard |
| UCE | University Center of Excellence |
| UCE | University Conferences and Events |
| UCE | University of Central England |
| UCEA | University Council for Educational Administration |
| UCEC | University of Chicago Engineering Center |