| Universités au Royaume-Uni | Universities in the United Kingdom |
| Universités aux États-Unis | Higher education in the United States |
| Universités de Hongrie | List of universities in Hungary |
| Universités en Pologne | List of universities in Poland |
| Universités en Suisse | List of universities in Switzerland |
| Universités en Tchéquie | List of universities in the Czech Republic |
| Universités italiennes | List of universities in Italy |
| Universum Film AG | Universum Film AG |
| Univision | Univision |
| univoque | univocal |
| UNIX | Unix |
| Unix File System | Unix File System |
| UNIX System Services | UNIX System Services |
| UNIX System V | UNIX System V |
| Unix to Unix Copy Protocol | UUCP |
| União Agrícola Barbarense Futebol Clube | União Agrícola Barbarense Futebol Clube |
| Unió Esportiva Figueres | UE Figueres |
| Unió Esportiva Lleida | UE Lleida |
| Unió Esportiva Sant Andreu | UE Sant Andreu |
| Unión Atlético Maracaibo | Unión Atlético Maracaibo |
| Unión Balompédica Conquense | UB Conquense |
| Unión Central Tarija | Club Unión Central |
| Unión Deportiva Almería | UD Almería |
| Unión Deportiva Lanzarote | UD Lanzarote |
| Unión Deportiva Las Palmas | UD Las Palmas |
| Unión Deportiva Marbella | UD Marbella |
| Unión Deportiva Melilla | UD Melilla |
| Unión Deportiva Mérida | Mérida UD |
| Unión Deportiva Pájara Playas de Jandía | UD Pájara Playas de Jandía |
| Unión Deportiva Salamanque | UD Salamanca |
| Unión Deportiva San Sebastián de los Reyes | UD San Sebastián de los Reyes |
| Unión Deportiva Vecindario | UD Vecindario |
| Unión General de Trabajadores | Unión General de Trabajadores |
| Unión Huaral | Unión Huaral |
| Unkel | Unkel |
| Unkelstein | Unkelstein |
| Unlambda | Unlambda |
| Unlicensed Mobile Access | Generic Access Network |
| Unna | Unna |
| Unnur Birna Vilhjálmsdóttir | Unnur Birna Vilhjálmsdóttir |
| Uno | Uno |
| Unobtainium | Unobtainium |
| Unocal Corporation | Unocal Corporation |
| Unquera | Unquera |
| Unquestionnable Presence | Unquestionable Presence |
| UnrealEd | UnrealEd |
| UnrealEngine | Unreal Engine |
| Unroch III de Frioul | Unruoch III of Friuli |
| Unrochides | Unruochings |
| Unschooling | Unschooling |
| UNSCOP | United Nations Special Committee on Palestine |
| Unserdeutsch | Unserdeutsch language |
| UnsraW | Unsraw |
| Unst | Unst |
| Unstructured Supplementary Service Data | Unstructured Supplementary Service Data |
| Unsuk Chin | Unsuk Chin |
| Untash-Napirisha | Untash-Napirisha |
| Untel | such-and-such |
| Unter den Linden | Unter den Linden |
| Unterach am Attersee | Unterach am Attersee |
| Unterbäch | Unterbäch |
| Unterbözberg | Unterbözberg |
| Untereggen | Untereggen |
| Untereggersberg | Untereggersberg |
| Untereisenbach | Untereisenbach |
| Unterems | Unterems |
| Unterendingen | Unterendingen |
| Unterengstringen | Unterengstringen |
| Unterentfelden | Unterentfelden |
| Unterhaching | Unterhaching |
| Unteriberg | Unteriberg |
| Unterkulm | Unterkulm |
| Unterlangenegg | Unterlangenegg |
| Unterlunkhofen | Unterlunkhofen |
| Untermensch | Untermensch |
| Unterpörlitz | Unterpörlitz |
| Unterramsern | Unterramsern |
| Unterregenbach | Unterregenbach |
| Unterreichenbach | Unterreichenbach |
| Unterscharführer | Unterscharführer |
| Unterschächen | Unterschächen |
| Unterseeboot | U-boat |
| Unterseeboot type I | German Type I submarine |
| Unterseeboot type II | German Type II submarine |
| Unterseeboot type VII | German Type VII submarine |
| Unterseeboot type X | German Type X submarine |
| Unterseeboot type XXI | German Type XXI submarine |
| Unterseeboot type XXIII | German Type XXIII submarine |
| Unterseen | Unterseen |
| Untersiggenthal | Untersiggenthal |
| Untersteckholz | Untersteckholz |
| Untersturmführer | Untersturmführer |
| Untervaz | Untervaz |
| Unterägeri | Unterägeri |
| Until the end of time | Until the End of Time |
| Untold Scandal | Untold Scandal |
| ununbium | ununbium |
| ununennium | ununennium |
| ununhexium | ununhexium |
| ununoctium | ununoctium |
| ununpentium | ununpentium |
| ununquadium | ununquadium |
| ununseptium | ununseptium |
| ununtrium | ununtrium |
| unununium | unununium |
| Uomo | Uomo |
| Uors | Uors |
| Upanishad | Upanishad |
| Upas | Antiar |
| Upaya | Upaya |
| UPC | UPC |
| Upekṣā | Upeksa |
| UPGMA | UPGMA |
| UPM | UPM |
| Upolu | Upolu |
| Uposatha | Uposatha |
| Upper New York Bay | Upper New York Bay |
| Upper Takutu-Upper Essequibo | Upper Takutu-Upper Essequibo |
| uppercut | uppercut |
| Uppland | Uppland |
| Upplands Väsby | Upplands Väsby |
| Uppsala | Uppsala |
| Uppsala General Catalogue | Uppsala General Catalogue |
| Uppsala län | Uppsala län |
| Uppsala-DLR Asteroid Survey | UAO-DLR Asteroid Survey |
| upsilon | upsilon |
| Upsilon Andromedae | Upsilon Andromedae |
| Upsilon Scorpii | Upsilon Scorpii |
| Upton Sinclair | Upton Sinclair |
| Upton-upon-Severn | Upton-upon-Severn |
| Upupiformes | Upupiformes |
| Upādāna | Upadana |
| Uqbar | Uqbar |
| Ur | Ur |
| Ur-Nammu | Ur-Nammu |
| Ur-Nanshe | Ur-Nanshe |
| Uracile | Uracil |
| Uraeotyphlidae | Uraeotyphlidae |
| uraeus | uraeus |
| Ural Airlines | Ural Airlines |
| Ural Great Perm | PBC Ural Great |
| Uralsk | Uralsk |
| Urania | Urania |
| Uraniborg | Uraniborg |
| Uranie | Urania |
| Uraniidae | Uraniidae |
| uraninite | uraninite |
| uraniste | uranist |
| uranium | uranium |
| uranium enrichi | enriched uranium |
| Uranometria | Uranometria |
| Urantia | The Urantia Book |
| Uranus | Uranus |
| uranyle | uranyl |
| Urartu | Urartu |
| Urashima Tarō | Urashima Tarō |
| Urawa Red Diamonds | Urawa Red Diamonds |
| Urawa-shi | Urawa-shi |
| uraète | eaglehawk |
| urbain | urban |
| Urbain Ier | Pope Urban I |
| Urbain II | Pope Urban II |
| Urbain III | Pope Urban III |
| Urbain IV | Pope Urban IV |
| Urbain Le Verrier | Urbain Le Verrier |
| Urbain V | Pope Urban V |
| Urbain VI | Pope Urban VI |
| Urbain VII | Pope Urban VII |
| Urbain VIII | Pope Urban VIII |
| Urban | Urban contemporary |
| Urban Dictionary | Urban Dictionary |
