| Acronym | Definition |
|---|
| UTC | Coordinated Universal Time (zulu or Greenwich Mean Time, GMT) |
| UTC | Universal Time Coordinated |
| UTC | University of Tennessee at Chattanooga |
| UTC | Uncle Tom's Cabin (book by Harriet Beecher Stowe) |
| UTC | United Technologies Corporation |
| UTC | Université de Technologie de Compiègne (French engineering school) |
| UTC | under these conditions |
| UTC | Utilities and Transportation Commission |
| UTC | Unicode Technical Committee |
| UTC | Urban Traffic Control |
| UTC | United Telecom Council (Washington, DC) |
| UTC | Unable to Contact |
| UTC | Under the Counter |
| UTC | University Transportation Centers |
| UTC | Universal Time Code |
| UTC | Utah Technology Council (Salt Lake City, UT) |
| UTC | Unable to Comply (ITU-T) |
| UTC | University Technology Centre (UK) |
| UTC | University Towne Centre (San Diego) |
| UTC | Until Completion |
| UTC | Up the Creek |
| UTC | Universal Test Client (IBM) |
| UTC | United Theological College (Bangalore, India) |
| UTC | Universal Time Clock |
| UTC | Unit Type Code |
| UTC | Universal Time Constant |
| UTC | Unión de Trabajadores del Campo (Spanish: Union of Rural Workers) |
| UTC | Under the Cabinet |
| UTC | Uni-Traveling Carrier |
| UTC | United Trading Company (Nigeria) |
| UTC | Unified Testing Criteria |
| UTC | University Teaching Council |
| UTC | Urban Transit Club |
| UTC | Unified Transportation Command |
| UTC | Uncle Tom Cobley |
| UTC | Utah Technology Commission |
| UTC | Until Tomorrow Comes (movie) |
| UTC | United Transformer Corporation (now-defunct transformer manufacturer) |
| UTC | Chief Utilitiesman (Naval Rating) |
| UTC | Utilities Telecommunication Council |
| UTC | Uppsala Theory Circle (Sweden) |
| UTC | User Type Code |
| UTC | Urban Target Complex |
| UTC | Universal Time Converted |
| UTC | Unit Tasking Code |
| UTC | Ultimate Tools Catalog |
| UTC | Upper Troposphere Cloud |
| UTC | Until Task Completed |
| UTC | Unique Tracked Component (motors and pumps) |
| UTC | Urgent Target Change |
| UTC | United Transportation Corporation (Dearborn, MI) |