| Unter den Linden | Unter den Linden |
| Unterallgäu | Powiat Unterallgäu |
| Unterbäch | Unterbäch |
| Unterdießen | Unterdießen |
| Untereisesheim | Untereisesheim |
| Unterems | Unterems |
| Unterensingen | Unterensingen |
| Unterföhring | Unterföhring |
| Untergruppenbach | Untergruppenbach |
| Unterhaching | Unterhaching |
| Unterkirnach | Unterkirnach |
| Unterleinleiter | Unterleinleiter |
| Untermensch | Untermensch |
| Unterreichenbach | Unterreichenbach |
| Unterreit | Unterreit |
| Unterschneidheim | Unterschneidheim |
| Unterschwaningen | Unterschwaningen |
| Untervaz | Untervaz |
| Unterwalden | Unterwalden |
| Unterwaldhausen | Unterwaldhausen |
| Until the End of Time | Until the End of Time |
| ununbio | ununbium |
| ununhexio | ununhexium |
| ununhéxio | ununhexium |
| ununpentio | ununpentium |
| ununpêntio | ununpentium |
| ununquadio | ununquadium |
| ununquádio | ununquadium |
| ununséptio | ununseptium |
| ununtrio | ununtrium |
| ununénnio | ununennium |
| ununóctio | ununoctium |
| unânime | jednomyślny |
| Unção dos enfermos | Namaszczenie chorych |
| unúnbio | ununbium |
| Uomo | Uomo |
| upa | wio |
| Upanishad | Upaniszady |
| Upanixade | Upaniszady |
| Upgrade | Upgrade |
| Uplifting Trance | Uplifting trance |
| Upnp | UPnP |
| Upper East | Region Upper East |
| Upper River | Upper River Division |
| Upper West | Region Upper West |
| Upplands Väsby | Gmina Upplands Väsby |
| Upplands-Bro | Gmina Upplands-Bro |
| Uppsala | Uppsala |
| Uppvidinge | Gmina Uppvidinge |
| Upton Sinclair | Upton Sinclair |
| Ur | Ur |
| Ur-Nammu | Urnammu |
| Uracilo | Uracyl |
| Urais | Ural |
| Uraniidae | Uraniowate |
| Urano | Uran |
| Uranoscopidae | Skaberowate |
| Urawa Red Diamonds | Urawa Red Diamonds |
| Urbach | Urbach |
| Urbana | Urbana |
| urbanizações | urbanizacja |
| urbano | miejski |
| Urbano Navarrete | Urbano Navarrete |
| urbe | miasto |
| Urbi et Orbi | Urbi et Orbi |
| Urbino | Urbino |
| urdu | urdu |
| Urease | Ureaza |
| ureia | mocznik |
| ureter | moczowód |
| uretra | cewka moczowa |
| Uretrite | Zapalenie cewki moczowej |
| urgente | pilny |
| URI | Uniform Resource Identifier |
| Uri Lupolianski | Uri Lupolianski |
| Uriel | Archanioł Uriel |
| Urim e Tumim | Urim i Tumim |
| urina | mocz |
| Urina humana | Mocz |
| urinar | sikać |
| urinol | pisuar |
| Urinoterapia | Urynoterapia |
| Urinálise | Badanie moczu |
| URL | Uniform Resource Locator |
| Urmein | Urmein |
| Urmia | Urmia |
| urna | urna |
| Urochordata | Osłonice |
| Urofilia | Urofilia |
| urologia | urologia |
| urologista | urolog |
| Urraca I de Leão e Castela | Urraka Kastylijska |
