| Unicode數字 | Unicor Prima Motor | Unicorn |
| Unicron | UNICS | UnICS |
| Unics | Unicycle | Unifi TV |
| Unified Modeling Language | Unified Parallel C | Unified S-Band |
| Unified threat management | Uniflor | Unifont |
| Uniform Office Format | Uniform Resource Identifier | Uniform Resource Locator |
| Uniform resource name | Uniform Server | Uniform space |
| Unihan | Unihan (消歧义) | Unihan (消歧義) |
| Unihan數據庫 | UNII | Unikonta |
| Unikurd Web | UNIL | Unilever |
| Unilli | Unimog | Union City |
| Union City Station | Union Cycliste International | Union des Foires Internationales |
| Union Grove, Alabama | Union J | Union of International Associations |
| Union of South Africa | Union Springs, Alabama | Union Square |
| Union Theological Seminary (New York City) | Union, Alabama | Union, South Carolina |
| Uniondale, New York | Unionidae | Unionpay |
| UnionPay | Uniontown, Alabama | UNIPER |
| UniProt | Uniprot | UniProt Knowledgebase |
| UNIQ | Uniqlo | UNIQLO |
| Unique | Uniscribe | Unison |
| UNISON SQUARE GARDEN | Unistalda | Unistd.h |
| Unisys | UNITA | Unitary group |
| UNITE! | United Airlines | United Arrows |
| United Artists | United Asia Management | United Baltic Duchy |
| United Biscuits | United Breaks Guitars | United Buddy Bears |
| United Church of Christ | United Cube | United Express |
| United Federation of Planets | United Front Games | United Game Artists |
| United Health | United Health Group | United Healthcare |
| United International Bank | United Kingdom | United Kingdom Census 2001 |
| United Kingdom of Great Britain and Ireland | United Kingdom of Great Britain and Northern Ireland | United Linux |
| United Methodist Church | United Microelectronics Corporation | United Nations |
| United Nations Commission on the Status of Women | United Nations Development Program | United Nations Development Programme |
| United Nations Economic Commission for Europe | United Nations Human Settlements Programme | United Nations Office for the Coordination of Humanitarian Affairs |
| United Nations Security Council | United Nations Supervision Mission in Syria | UNITED NON-FERROUS (OVERSEAS) LIMITED |
| United Press International | UNITED SHADOWS | United States |
| United States Air Force | United States Census Bureau | United States Census, 2000 |
| United States Chamber of Commerce | United States Democratic Party | United States Department of Agriculture |
| United States Department of Commerce | United States Department of Homeland Security | United States Department of State |
| United States Department of the Interior | United States dollar | United States Environmental Protection Agency |
| United States Food and Drug Administration | United States Geological Survey | United States Grand Prix |
| United States House of Representatives | United States Marine Corps | United States Marshals Service |
| United States men's national soccer team | United States National Library of Medicine | United States Naval Observatory |
| United States of America | United States of Tara | United States of the Ionian Islands |
| United States Patent and Trademark Office | United States Postal Service | United States Republican Party |
| United States Senator | United States Supreme Court | United States v. Leon |
| United States v. Windsor | United States Virgin Islands national soccer team | UnitedHealth |
| UnitedHealth Group | UnitedHealthcare | UnitedLinux |
| Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terroism Act of 2001 | Unity | Unity (使用者介面) |
| Unity (用户界面) | Unity (游戏引擎) | Unity (海底光缆) |
| Unity 5 | Unity Linux | Unity3D |
| Unity引擎 | Unity界面 | UNIVAC |
| UNIVAC I | Univers | Universal |
| Universal app | Universal Character Set | Universal Declaration of Human Rights |
| Universal Design | Universal Flash Storage | Universal Furniture |
| Universal Media Disc | Universal Music | Universal Music Group |
| Universal Network Objects | Universal Orlando | Universal Orlando Resort |
| Universal Pictures | Universal Plug and Play | Universal Records |
| Universal Serial Bus | Universal Studios | Universal Television |
| Universal Windows Platform | Universally Unique Identifier | Universe |
| Universe (EXO迷你專輯) | Universe (樂團) | UNIVERSE 世界少年 |
| Universe Today | Universidad Nacional Mayor de San Marcos | Universitas 21 |
| Universitatea din Bucureşti | Università degli Studi di Padova | Università di Bologna |
| Universität Bochum | Universität Freiburg | Université de Pau et des Pays de l'Adour |
| Universitetssenteret på Svalbard | Universities UK | University Athletic Association |
| University Centre in Svalbard | University College Cork | University College London |
| University College, Cork | University College, London | University Global Partnership Network |
| University of Aberdeen | University of Alabama at Birmingham | University of Applied Arts Vienna |
| University of Applied Sciences Fulda | University of Arizona | University of Basel |
| University of Bedfordshire | University of Berlin | University of Bern |
| University of Birmingham | University of Bolton | University of Bristol |
| University of British Columbia | University of Buenos Aires | University of Calcutta |
| University of Calgary | University of California | University of California, Berkeley |
| University of California, Los Angeles | University of California, San Diego | University of California, Santa Barbara |
| University of Cambridge | University of Chicago | University of Chicago Press |
| University of Colorado Boulder | University of Colorado-Boulder | University of Connecticut |
| University of Copenhagen | University of Denver | University of Dhaka |
| University of East London | University of Edinburgh | University of Essex |
| University of Exeter | University of Florida | University of Göttingen |
| University of Graz | University of Greifswald | University of Hawaii |
| University of Hawaii Press | University of Heidelberg | University of Hong Kong |
| University of illinois at urbana-champaign | University of Illinois at Urbana-Champaign | University of Kang Ning |
| University of Kansas | University of Kentucky | University of Leeds |
| University of Leiden | University of Liberia | University of London |
| University of Manchester | University of Manitoba | University of Massachusetts Amherst |
| University of Melbourne | University of Miami | University of Michigan |
| University of Milan | University of Minnesota | University of Missouri |
| University of New Mexico | University of New South Wales | University of North Carolina |
| University of North Carolina at Chapel Hill | University of Nottingham | University of Oxford |
| University of Pennsylvania | University of Phoenix | University of Pittsburgh |
| University of Portland | University of Queensland | University of Richmond |
| University of Rochester | University of Roehampton | University of Salford |
| University of Saskatchewan | University of Southampton | University of Southern California |
| University of Stellenbosch | University of Strasbourg | University of Sussex |
| University of Sydney | University of Tasmania | University of Tübingen |
| University of Texas at Austin | University of Texas at Dallas | University of Texas Rio Grande Valley |
| University of the Arts London | University of Toledo | University of Toronto |
| University of Uppsala | University of Utah | University of Utrecht |
| University of Vermont | University of Waterloo | University of Western Australia |
| University of Western Ontario | University Station | Universum Film GmbH |
| UNIX | Unix | Unix domain socket |
