| Acronym | Definition |
|---|
| UEC | University of Electro-Communications (Tokyo, Japan) |
| UEC | Unit Error Code |
| UEC | Universal Energy Corp. (various locations) |
| UEC | Union des Etudiants Communistes (French: Union of Communist Students) |
| UEC | Used/Excellent Condition (sales status) |
| UEC | Urban Ecology Center (Milwaukee, WI) |
| UEC | Union Executive Committee |
| UEC | Unit Energy Consumption (utility usage measurement) |
| UEC | Unió Excursionista de Catalunya (Mountaineering association in Catalonia) |
| UEC | Union Européenne de Cyclisme |
| UEC | Utah Electronic College |
| UEC | Unlawful Enemy Combatant |
| UEC | Unit Environmental Coordinator (hazardous material and waste monitor) |
| UEC | University Extension Center |
| UEC | Union Events Calendar (Rensselaer Union) |
| UEC | Urea, Electrolytes, Creatinine (renal function blood test) |
| UEC | University Engineers' Club (University of Western Australia) |
| UEC | United Engineering Center |
| UEC | Urban Expert Centre (Dutch) |
| UEC | Urban Educator Corps |
| UEC | Union Europeene des Experts Comptables Economiques et Financiers (est. 1951) |
| UEC | United Energy Corporation (solar powered electricity generation) |
| UEC | Utility Expansion Charges (water utilities) |
| UEC | Unauthorized Entry into Cuban Territorial Waters |
| UEC | Universal Engine Controller |
| UEC | United Engineers and Contractors (nuclear facility contractor group) |
| UEC | Upper-Edge Cell |
| UEC | Unidad de Escena del Crimen (Spanish: Crime Scene Unit) |
| UEC | Utah Education Consulting |
