| Umirajoči Galačan | Umirajoči suženj | Umiranje v ogledalu |
| Umivanje nog | Umivanje rok | UML |
| Umljanović | Umm ar-Rasas | Umm el-Qa'ab |
| Umm Qais | Umm-El-Banine Assadoulaeff | Umol |
| Umor | Umor (kan) | Umor Brooke Wilberger |
| Umor Christine Marie Williams | Umor družine Watts | Umor Janka Komljanca, Alojza Pašiča in bratov Murgelj |
| Umor Janka Komljanca, Alojza Pašiča ter Antona in Alojza Murglja | Umor Janka Komljanca,Alojza Pašiča in bratov Murgelj | Umor Jessice Ridgeway |
| Umor na Manhattnu | Umori na podeželju | Umori v Jazbečevem Dolu |
| Umov | Umov-Poyntingov vektor | UMP |
| Umri pokončno | Umrljivost | UMTS |
| UN | UN število | Un Ballo in Maschera |
| Un chien andalou | Un chien Andalou | Una |
| Una (pleme) | Una (razločitev) | Una (razred podmornic) |
| Una corda | Unač | Unagi |
| Unam sanctam | Unani | Unarna operacija |
| Unarni številski sistem | Unas | Unasi |
| Unasova piramida | UNASUL | UNASUR |
| Unča | Unčani | Unška koliševka |
| Unbearable Conditions | Unbiunij | Unbiunium |
| UNC | Uncharted 2 | Unciala |
| Uncialna pisava | Uncinula necator | Uncle Sam |
| Uncle Tom's Cabin | Uncle Tom's Cabin; or, Life Among the Lowly | UNCTAD |
| Und | Undómiel | Undecima |
| Under Heavy Manners | Under My Skin (album, Avril Lavigne) | Under the Red Cloud |
| Underberg | Underworld Kingdom | Unešić |
| Unec | Unending (Zvezdna vrata SG-1) | UNESCO |
| Unesco | Unescova dediščina na Norveškem | Unescova dediščina v Indiji |
| Unescova svetovna dediščina | Unescova svetovna dediščina v Vietnamu | Unevine |
| UNFICYP | Unfinished Music No. 1: Two Virgins | Unfinished Music No.1: Two Virgins |
| Unfinished Tales | Unforgiven | Unger |
| Unguja | Ungulina rosea | Ungvár |
| UNHCR | Uniati | Uniatska cerkev |
| Uničenje Baturina | Uničenje jezu Kahovka | Uničenje Sodome in Gomore |
| Uničevalec tankov | Uničevalno taborišče | Uničevalno taborišče Jasenovac |
| Uničevalno taborišče Sobibór | Uničevanje sovražnikove protiletalske obrambe | Uničevanje spomenikov Aleksandra Puškina v Ukrajini |
| Unično | Uniše | União de Nações Sul-Americanas |
| Unión de Naciones Suramericanas | Unión Deportiva Las Palmas | Unica |
| Unica (reka) | UNICEF | Unicef |
| Unicelularen | Unicelularen organizem | Unicelularni |
| Unicelularni organizem | Unico Wilhelm van Wassenaer | Unicode |
| Unicode obseg | Unicode razpon | UNIDO |
| Unie van Zuid-Amerikaanse Naties | Uniejów | Uniejow |
| Unified Modelling Language | Uniform Resource Locator | Uniform Resource Locators |
| Uniforma | Uniformna antiprizmatična prizma | Uniformni polieder |
| Uniformni polihoron | Uniformni politop | Uniformni zvezdni polieder |
| Uniformno barvanje | Uniformno tlakovanje | Uniformolog |
| Uniformologija | Unigenitus | Unigraphics |
| Unija | Unija južnoameriških držav | Unija množic |
| Unija za Sredozemlje | Unije | Unije (naselje) |
| Unijerina | Unikod | UNIMARC |
| Unimodularna matrika | Unimog | Unio B. Sarlin |
| Unio crassus | Union Cycliste Internationale | Union Deportiva Las Palmas |
| Union Jack | Union List of Artist Names | Union of South American Nations |
| Union Olimpija | Union Pacific Railroad | Union pour un Mouvement Populaire |
| Unione Calcio Sampdoria | Unione Calcio Sampdoria S.p.A | Unione Sportiva Lecce |
| Unionville Seaforths | Unior | Unipolarna motnja |
| Unipolarni tranzistor | Unipotentna matrika | Unipotentnost |
| Unison | Unisonost | Unistohastična matrika |
| Unitarizem | Unitarna algebra | Unitarna matrika |
| Unitatis redintegratio | Unitatis Redintegratio | Unità d'Italia |
| United 93 (film) | United Aircraft Corporation | United Airlines |
| United Airlines let 93 | United Artists | United Church of Christ |
| United Kennel Club | United Kingdom | United States |
| United States Air Force | United States Army | United States Constitution |
| United States copyright law | United States Democratic Party | United States Department of Defense |
| United States dollar | United States Marine Corps | United States National Academy of Sciences |
| United States national basketball team | United States Naval Special Warfare Development Group | United States Navy |
| United States Navy SEALs | United States Secret Service | United States Special Operations Command |
| United States Virgin Islands | Unity | Univ. dipl. fizik |
| Univeritas Labacensis | Universal Media Disc | Universal Personal Telecommunications |
| Universal Pictures | Universal Serial Bus | Universal Studios |
| Universalis Ecclesiae | Universidade Federal de Minas Gerais | Universitas Alexandria |
| Universitas lingvarum Litvaniæ | Università Cattolica del Sacro Cuore | Universität für Musik und darstellende Kunst Wien |
| Universität Laibach | Université de Genève | Université de Lille |
| Université Paris Cité | Universiteit Leiden | University College London |
| University of British Columbia | University of California | University of California at Berkeley |
| University of California, Berkeley | University of California, Los Angeles | University of California, San Diego |
| University of California, San Francisco | University of Cambridge | University of Chicago |
| University of London | University of Michigan | University of Oxford |
| University of St Andrews | University of Washington | University of Wisconsin-Madison |
| Univerza | Univerza "Nikolaj Kuzanski" | Univerza al-Karauin |
| Univerza Atılım | Univerza »Nikolaj Kuzanski« | Univerza Bauhaus |
| Univerza Bío-Bío | Univerza Berkeley | Univerza Bifröst |
| Univerza Bocconi | Univerza Britanske Kolumbije | Univerza Cambridge |
| Univerza Columbia | Univerza Cornell | Univerza države Florida |
| Univerza Duke | Univerza Edvarda Kardelja v Ljubljani | Univerza Ernsta Moritza Arndta Greifswald |
| Univerza Floride | Univerza Friedricha Schillerja v Jeni | Univerza Göttingen |
| Univerza Grenoble Alpes | Univerza Harvard | Univerza Johns Hopkins |
| Univerza Johnsa Hopkinsa | Univerza Josipa Juraja Strossmayerja v Osijeku | Univerza Juraja Dobrile v Pulju |
| Univerza Kalifornije | Univerza Kalifornije, Berkeley | Univerza Kalifornije, Los Angeles |
| Univerza Kalifornije, San Diego | Univerza Kalifornije, San Francisco | Univerza Karla Marxa v Leipzigu |
| Univerza Kolumbija | Univerza Komenskega | Univerza Komenskega v Bratislavi |
| Univerza Kralja Aleksandra I. v Ljubljani | Univerza Kraljevine Srbov, Hrvatov in Slovencev v Ljubljani | Univerza McGill |
| Univerza McMaster | Univerza medicinskih znanosti Bakvijatala | Univerza Michigana |
| Univerza na Dunaju | Univerza na Primorskem | Univerza na Reki |
| Univerza Naresuan | Univerza Northwestern | Univerza Novo mesto |
| Univerza Oxford | Univerza Paris-Saclay | Univerza Pariz-Saclay |
| Univerza Pensilvanije | Univerza Princeton | Univerza PSL |
| Univerza Rockefeller | Univerza Severne Karoline v Chapel Hillu | Univerza Severne Karoline, Chapel Hill |
| Univerza Sorbonne | Univerza Stanford | Univerza Stony Brook |
