| University Commercial Centre | Academic & Science |
| University Curriculum Committee | Academic & Science |
| University Core Curriculum | Academic & Science |
| University Counseling Center | Academic & Science |
| Unit Un Certinity | Academic & Science |
| University Core Course | Academic & Science |
| University of Cape Coast | Academic & Science |
| University Cultural Centre | Academic & Science |
| University Computer Club | Academic & Science |
| Unconfirmed Credit Contract | Accounts and Finance |
| Uniform Commercial Code | Accounts and Finance |
| Yucca Flat (nv) | Airport Code |
| Ueshima Coffee Corporation | Business |
| Ueshima Coffee Company | Business |
| Upper Class Complex | Community |
| United Church Of Christ | Community |
| Unitarians Considering Christ | Community |
| Usual and Customary Care | Community |
| United Community Center | Community |
| Utah Conservation Corps | Community |
| Union County College | Community |
| Unitarians Craving Christ | Community |
| United Congregational Church | Community |
| Union Customs Code | Community |
| United Cambodian Community | Community |
| United Consumers Club | Community |
| United Church of Canada | Community |
| United Church of Canada (largest protestant denomination in Can.) | Community |
| Unreal Code Compiler | Computing |
| Unified Communication Center | Computing |
| Unified Customer Communications | Computing |
| Univention Corporate Client | Computing |
| Utility and Cloud Computing | Computing |
| User Created Content | Computing |
| Unified Contact Center | Contact |
| University College of The Cariboo | Educational Institute |
| University College Centers | Educational Institute |
| University College Cork | Educational Institute |
| Umpqua Community College | Educational Institute |
| Ultimate Cinema Convention | General |
| Ueshima Coffee Co | General |
| Upper Continental Crust | General |
| Unilateral Customer Code | General |
| Uniform Construction Code | General |
| Uniform Commercial Codeb | General |
| Unicorns Causing Cancer | General |
| Underfloor Catalytic Converter | General |
| Unified Chassis Control | General |
| Urban Cross Concept | General |
| Undersea Communication Cable | General |
| Usage Condition Code | General |
| Under Car Catalytic Converter | General |
| Unique Cars Club | General |
| Unique Corvette Club | General |
| Universityrsity Counseling Center | General |
| Universal Commercial Code | General |
| Uncles Congregational Continent | General |
| Uniform Civil Code | General |
| Uniform Child Custody | General |
| U Cant Clap | General |
| Unreal Commandline Client | General |
| The Uniform Contract Code | General |
| Uniform Code Council | Governmental |
| Universal Container Code | Governmental |
| Utilities Coordinating Committee | Governmental |
| Unió del Centre de Catalunya | International |
| Urgent Care Centre | Medical |
| Urgent Care Clinic | Military and Defence |
| Urgent Care Center | Military and Defence |
| User Created Contents | Networking |
| Universal Checkout Console | Space Science |
| Universal Connectivity Charge | Telecommunication |
