- Uzbek girl
- Upper Palaeolithic
- Upper Pleistocene
- United States Department of Justice , DOJ
- underground cable construction
- uranium mica
- upsetting machine
- undersea diver
- undersea divers
- U-shaped chisel
- urge to spend
- Ulzana's Raid
- upsetting moment
- universal joint spark plug wrench
- United Nations Children's Fund, UNICEF
- United Nations International Children's Emergency Fund , UNICEF
- up-and-over basin
- umrah
- uvula of cerebellum
- utility box
- University Clinic Cologne
- upset bulging
- United States Special Operations Command , USSOCOM , SOCOM
- urban infrastructure
- uncrompising
- uncrompisingly
- uncompromising attitude
- United Nations Conference on Disarmament , UNCD
- United Nations Conference on Trade and Development , UNCTAD
- up in business activity
- upturn in business
- upturn in business cycle
- upward business trend
- United Nations Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment , CAT
- United Nations Convention against Torture , CAT
