| UCEC | Umgeni Community Empowerment Centre 
| Others |
| UCEC | Union County Early College
| Others |
| UCEC | Unitarian Christian Emerging Church
| Others |
| UCEC | Universal Content Extended Classification
| Others |
| UCEC | Universitas Ciputra Entrepreneurship Center
| Others |
| UCEC | University Community Engagement Conference
| Others |
| UCEC | University of Chicago Engineering Center
| Others |
| UCEC | University of Colorado Engineering Council
| Others |
| UCEC | University of Copenhagen Entrepreneurship Club
| Others |
| UCEC | Upstream Cost Engineering Committee
| Others |
| UCEC | Uterine Corpus Endometrioid Carcinoma
| Others |
| UCEC | Utility Control Equipment Corporation
| Others |