UEC may refer to:
- Urban Entertainment Center
- Union Election Commission, the electoral commission of Myanmar (Burma)
- Unified Examinations Certificate, an examination held by the United School Committees' Association Malaysia for Chinese independent high school students
- Universal electronic card, an identity card formerly issued to citizens of Russia to use instead of an internal passport
- University of Electro-Communications, a Japanese university based in Chofu city, Tokyo
- University of Exeter, Cornwall Campus, campus of the University of Exeter at Tremough, in Penryn, Cornwall, United Kingdom
- Union Européenne de Cyclisme (European Cycling Union)
- United Electric Car Company, a defunct tramcar manufacturer in the United Kingdom
- United Engine Corporation, a Russian aircraft engine manufacturer
- Ubuntu Enterprise Cloud, open-source infrastructure for cloud computing under Ubuntu Linux
- Urea, electrolytes, creatinine, a blood test sometimes referred to as a basic metabolic panel
- UEC Cup, computer Go tournament held at the University of Electro-Communications
- Uganda Electoral Commission, the electoral commission of Uganda