| City | Country |
|---|---|
| Un'goofaaru | Maldives |
| Uzice | Serbia |
| Umm el Fahm | Israel |
| Ushuaia | Argentina |
| Umm al Qaywayn | United Arab Emirates |
| Uman | Mexico |
| Usak | Turkey |
| Uttaradit | Thailand |
| Ulundi | South Africa |
| Udomlya | Russia |
| Ungheni | Moldova |
| Upminster | United Kingdom |
| Utena | Lithuania |
| Ulaangom | Mongolia |
| Uliastay | Mongolia |
| Ukmerge | Lithuania |
| Utazu | Japan |
| Ulcinj | Montenegro |
| Udelnaya | Russia |
| Uthai Thani | Thailand |
| Ucar | Azerbaijan |
| Utley | United Kingdom |
| Uddingston | United Kingdom |
| Uttarbhag | India |
| Ulbroka | Latvia |
| Ub | Serbia |
| Umm Salal `Ali | Qatar |
| Union Choco | Panama |
| Udine | Italy |
| Urgut Shahri | Uzbekistan |
| Ukhta | Russia |
| Uacu Cungo | Angola |
| Ubatuba | Brazil |
| Ushiku | Japan |
| Ubay | Philippines |
| Ust'-Ilimsk | Russia |
| Uvinza | Tanzania |
| Usol'ye-Sibirskoye | Russia |
| Unai | Brazil |
| Umingan | Philippines |
| Uwajima | Japan |
| Uniao dos Palmares | Brazil |
| Urus-Martan | Russia |
| Unna | Germany |
| Upi | Philippines |
| Uson | Philippines |
| Uki | Japan |
| Urbiztondo | Philippines |
| Umm Ruwaba | Sudan |
| Ucuma | Angola |