| Unicode | Unicode |
| Unicode Transformation Format | UTF |
| unicorn | enhörning |
| unicycle | enhjuling |
| Unidad Popular | Unidad Popular |
| unidentified | oidentifierad |
| Unidentified flying object | Ufo |
| Unidirectional valve | Backventil |
| Uniejów | Uniejów |
| UNIFEM | UNIFEM |
| unification | förening |
| Unification Church | Moonrörelsen |
| Unification of Germany | Tysklands enande |
| unified | förenad |
| Unified Display Interface | Unified display interface |
| Unified field theory | Enhetlig fältteori |
| Unified messaging | Enhetlig meddelandehantering |
| Unified Modeling Language | UML |
| Unified Team | Förenade laget |
| uniform | likformig |
| uniform continuity | likformig kontinuitet |
| Uniform Resource Locator | Uniform Resource Locator |
| uniformed | uniformerad |
| uniformity | likformighet |
| uniformly continuous | likformigt kontinuerlig |
| unify | förena |
| Unigenitus | Unigenitus |
| unilateral | ensidig |
| unilateralism | unilaterism |
| Unilever | Unilever |
| unilingual | enspråkig |
| unilingualism | enspråkighet |
| unimaginative | fantasilös |
| Unimak Island | Unimak Island |
| Unimog | Unimog |
| unimpeachable | oantastlig |
| unimpeded | fri |
| unimportant | trivial |
| unimpressed | oberörd |
| unimpressive | oansenlig |
| Unincorporated area | Kommunfritt område |
| uninformed | oupplyst |
| uninhabitable | obeboelig |
| uninhabited | övergiven |
| uninhibited | hämningslös |
| uninitiated | oinvigd |
| uninjured | oskadad |
| uninspired | oinspirerad |
| uninspiring | torftig |
| uninstall | avinstallera |
| uninstalling | avinstallerande |
| unintelligible | obegriplig |
| unintentional | oavsiktlig |
| unintentionally | omedvetet |
| uninterested | likgiltig |
| uninterestedly | apatiskt |
| uninteresting | torftig |
| uninterrupted | kontinuerlig |
| uninterruptedly | kontinuerligt |
| Uninterruptible power supply | Avbrottsfri kraftförsörjning |
| unintrested | ointresserad |
| unintresting | ointressant |
| union | förbund |
| Union badge of Norway and Sweden | Sillsallaten |
| Union between Sweden and Norway | Svensk-norska unionen |
| Union County | Union County |
| Union Cycliste Internationale | UCI |
| Union Démocratique Bretonne | Union démocratique bretonne |
| Union Flag | Union Jack |
| Union for a Popular Movement | Folkrörelseunionen |
| Union for Democracy and Social Progress | Unionen för demokrati och social utveckling |
| Union for Europe of the Nations | Unionen för nationernas Europa |
| Union for French Democracy | Unionen för fransk demokrati |
| Union Island | Union |
| Union Jack | Union Jack |
| Union Nationale | Nationella Unionen |
| Union Nationale des Étudiants de France | Union nationale des étudiants de France |
| Union of Congolese Patriots | Unionen av Kongolesiska Patrioter |
| Union of Reform Forces | Reformkrafternas förbund |
| Union of Salvation | Räddningsunionen |
| Union of Soviet Socialist Republics | USSR |
| Union of the Comoros | Comorerna |
| Union Pacific Railroad | Union Pacific Railroad |
| Union Party | Sambandsflokkurin |
| Union Territory | Unionsterritorium |
| Unionidae | Målarmusslor |
| Unionism in Ireland | Unionism |
| unionize | ansluta sig till en fackförening |
