| Ulaanbaatar | Ulan Bator |
| Ulcinj | Ulcinj |
| Ulfborg-Vemb | Ulfborg-Vemb Kommune |
| ulle | jeres |
| Ullensaker | Ullensaker |
| Ullensvang | Ullensvang |
| Ullerslev | Ullerslev Kommune |
| Ullevi | Ullevi |
| Ullr | Ull |
| Ulm | Ulm |
| Ulmen | Elm |
| Ulmus minor | Småbladet Elm |
| Ulrica | Ulrikka |
| Ulrich | Ulrik |
| Ulrich van Württemberg | Ulrik |
| Ulrika | Ulrikka |
| Ulrike | Ulrikka |
| Ulrike Meinhof | Ulrike Meinhof |
| Ulrikka | Ulrikka |
| Ulsan | Ulsan |
| Ulsnis | Ulsnæs |
| Ulstein | Ulstein |
| Ulster | Ulster |
| ultiem | endelig |
| ultimatum | ultimatum |
| Ultra Wideband | UWB |
| Ultrageluid | Ultralyd |
| Ultrakorte golf | VHF |
| Ultralicht motorluchtvaartuig | Ultralet fly |
| Ultralopen | Ultramarathon |
| Ultraperifere regio | Ultraperiferisk region |
| Ultraviolet licht | Ultraviolet lys |
| Uluru | Uluru |
| Ulvik | Ulvik |
| Ulysses | Ulysses |
| Uma Thurman | Uma Thurman |
| Umberto Boccioni | Umberto Boccioni |
| Umberto Eco | Umberto Eco |
| Umberto Giordano | Umberto Giordano |
| Umbriel | Umbriel |
| Umbrië | Umbria |
| Umea school of Business | Handelshögskolan i Umeå |
| Umeå | Umeå |
| umlaut | omlyd |
| Umma | Umma |
| Un chien andalou | Den andalusiske hund |
| UN Peacemaker | UN Peacemaker |
| Unai Etxebarria Arana | Unai Etxebarria |
| Unai Osa | Unai Osa |
| UNAIDS | UNAIDS |
| Unaire bewerking | Operation |
| unaniem | enstemmig |
| Unciaal | Uncial |
| Uncle Sam | Uncle Sam |
| Uncyclopedia | Uncyclopedia |
| Undecime | Undecim |
| Underground | Underground |
| Underscore | Bundstreg |
| Underworld | Dødsriget |
| Ungangan | Aleuterne |
| UNICEF | UNICEF |
| Unicode | Unicode |
| Unidentified Flying Object | Ufo |
| unie | union |
| Unie van Indochina | Indokina |
| Unie van Islamitische Rechtbanken | Rådet af Islamiske Domstole |
| Unie van Zuid-Afrika | Unionen Sydafrika |
| Uniejów | Uniejów |
| Unified Modeling Language | UML |
| Uniform Resource Identifier | Uniform Resource Locator |
| Uniform Resource Locator | URL |
| Uniforme verdeling | Ligefordeling |
| Uniformitarianisme | Aktualitetsprincippet |
| Unihockey | Floorball |
| Unilever | Unilever |
| Union Centroamericana de Fútbol | Unión Centroamericana de Fútbol |
| Union City | Union City |
| Union Flag | Storbritanniens flag |
| Union Internationale des Chemins de fer | UIC |
| Union Jack | Storbritanniens flag |
| Union of European Football Associations | UEFA |
| Union pour un Mouvement Populaire | UMP |
| Unirally | Unirally |
| UNITA | UNITA |
| Unitarisme | Unitarisme |
| United Airlines | United Airlines |
| United Nations Development Programme | UNDP |
| United Nations Environment Programme | United Nations Environment Programme |
| United Nations Industrial Development Organization | UNIDO |
| United Nations Relief and Rehabilitation Administration | UNRRA |
| United States Air Force | United States Air Force |
| United States Army | United States Army |
| United States Coast Guard | United States Coast Guard |
| United States Department of Defense | Det amerikanske forsvarsdepartement |
| United States Marine Corps | United States Marine Corps |
| United States Navy | United States Navy |
| Universal Media Disc | Universal Media Disc |
| Universal Product Code | Universal Product Code |
| Universal Serial Bus | Universal Serial Bus |
| Universal Studios | Universal Studios |
| Universala Esperanto-Asocio | UEA |
| Universalisme | Universalisme |
| Universaliënstrijd | Striden om almenbegreberne |
| Universeel Esperantocongres | Esperanto-verdenskongressen |
| Universele Transversale Mercatorprojectie | Universal Transverse Mercator |
| universitair | universitet |
| universiteit | skole |
| Universiteit Leiden | Universiteit Leiden |
| Universiteit van Amsterdam | Universiteit van Amsterdam |
| Universiteit van Cambridge | Cambridge Universitet |
| Universiteit van Chicago | University of Chicago |
| Universiteit van Georgetown | Georgetown University |
| Universiteit van Groenland | Ilisimatusarfik |
| Universiteit van Kopenhagen | Københavns Universitet |
| Universiteit van Münster | Westfälische Wilhelms-Universität |
| Universiteit van Oslo | Universitetet i Oslo |
| Universiteit van Oxford | Oxford Universitet |
| Universiteit van Pennsylvania | University of Pennsylvania |
| Universiteit van Umeå | Umeå Universitet |
| Universiteit van Uppsala | Uppsala universitet |
| Universiteit van Wenen | Wien Universitet |
| Universiteit van Wesleyan | Ohio Wesleyan University |
| Universiteit van Århus | Aarhus Universitet |
| universum | univers |
| Unix | UNIX |
| Unnur Birna Vilhjálmsdóttir | Unnur Birna Vilhjálmsdóttir |
| UNO | Uno |
| UNPO | UNPO |
| UNPROFOR | United Nations Protection Force |
| Unst | Unst |
| Unter den Linden | Unter den Linden |
| Unterhaching | SpVgg Unterhaching |
| Untitled | Untitled |
| Uomo universale | Polyhistor |
| Upanishad | Meditation |
| UPnP | Universal Plug and Play |
| Uppland | Uppland |
| Upplands Väsby | Upplands Väsby |
| Uppsala | Uppsala |
| Uppsala län | Uppsala län |
| Uppvidinge | Uppvidinge kommun |
| upsilon | ypsilon |
| Upupidae | Hærfugl |
| Ur | Ur |
| Ur svenska hjärtans djup en gång | Kungssången |
| uraan | uran |
| Uracil | Uracil |
| Urania | Urania |
| Uraniavlinders | Urania |
| uranium | uran |
| Uranus | Uranus |
| Urartu | Urartu |
| Urban Gad | Peter Urban Gad |
| Urbino | Urbino |
| Urd | Urd |
| Urdu | Urdu |
| Urho Kekkonen | Urho Kekkonen |
| Uri | Uri |
| Urim en Tummim | Urim og Tummim |
| urine | urin |
| urineren | urinere |
| urinoir | urinal |
