| unique | ovanlig |
| Unique key | Kryptonyckel |
| Unique Master Citizen Number | Personnummer |
| uniquely | unikt |
| Uniramia | Enkelbensleddjur |
| unisex | unisex- |
| unison | samråd |
| Unisys | Unisys |
| unit | dos |
| unit circle | enhetscirkel |
| Unit disk | Enhetsskiva |
| unit vector | enhetsvektor |
| UNITA | UNITA |
| unitarian | unitarie |
| Unitarianism | Unitarism |
| Unitarisation | Unitarism |
| unitary | enhetlig |
| Unitary state | Enhetsstat |
| unite | förena |
| united | förenad |
| United Airlines | United Airlines |
| United Arab Emirates | Förenade Arabemiraten |
| United Arab Emirates dirham | UAE-dirham |
| United Arab Emirates national football team | Förenade arabemiratens herrlandslag i fotboll |
| United Arab Republic | Förenade arabrepubliken |
| United Buddy Bears | Buddy Bär |
| United Federation of Planets | United Federation of Planets |
| United Fruit Company | United Fruit Company |
| United Islamic Front for the Salvation of Afghanistan | Norra Alliansen |
| United Kingdom | England |
| United Kingdom in the Eurovision Song Contest | Storbritanniens bidrag i Eurovisionsschlagerfestivalen |
| United Kingdom Independence Party | United Kingdom Independence Party |
| United Kingdom of Great Britain | Kungariket Storbritannien |
| United Kingdom of Great Britain and Ireland | Förenade kungariket Storbritannien och Irland |
| United Kingdom of Great Britain and Northern Ireland | Storbritannien |
| United Kingdom of the Netherlands | Konungariket Nederländerna |
| United Methodist Church | Metodism |
| United Mexican States | Mexico |
| United Microelectronics Corporation | United Microelectronics Corporation |
| United National Party | United National Party |
| United Nations | Förenta Nationerna |
| United Nations Assistance Mission for Rwanda | UNAMIR |
| United Nations Charter | FN-stadgan |
| United Nations Children's Fund | Unicef |
