Country, County, State or Province (U)
| Country, County, State or Province | Capital City or Admin Centre |
|---|---|
| Ucayali (Peru) | Pucallpa |
| Udmurtia (Russia) | Lzhevsk |
| Uganda | Kampala |
| Ukraine | Kiev |
| Umbria (Italy) | Perugia |
| United Arab Emirates | Abu Dhabi |
| United Kingdom | London |
| United States of America | Washington DC |
| Upper Demerara / Berbice (Guyana) | Linden |
| Upper East (Ghana) | Bolgatanga |
| Upper River (Gambia) | Basse |
| Upper West (Ghana) | Wa |
| Uri (Swiss canton) | Altdorf |
| Uruguay | Montevideo |
| Ust-Ordyn-Buryat (Russia) | Ust-Ordynsk |
| Utah (USA) | Salt Lake City |
| Uttar Pradesh (India) | Lucknow |
| Uusimaa (Finland) | Helsinki |
| Uvs (Mongolia) | Ulaangom |
| Uzbekistan | Tashkent |
