| Rank | Abbreviation | Meaning |
|---|
| ***** | UTOPIA | Urban Traffic Optimisation by Integrated Automation
| |
| **** | UTOPIA | Universal Test and Operations Physical Interface for ATM
| |
| *** | UTOPIA | Universal Test and Operations Interface for ATM
| |
| *** | UTOPIA | Usable Technology for Older People Inclusive and Appropriate
| |
| *** | UTOPIA | Uniformly Third-Order Polynomial Interpolation Algorithm
| |
| ** | UTOPIA | Universal Test and Operations Physical Interface for Asynchronous
| |
| ** | UTOPIA | User-Tested Optimized Practices in Action
| |
| ** | UTOPIA | Universal Test and Operations Physical layer Interface for ATM
| |
| * | UTOPIA | Utah Telecommunications Open Infrastructure Agency
| |
| * | UTOPIA | Universal Test and Operation
| |
| * | UTOPIA | Utilization of Platelet Inhibition in Angina
| |
| * | UTOPIA | Unified Theory of Oxygen Participation in Aerobiosis
| |
| * | UTOPIA | Utah Telecommunication Open Infrastructure Agency
| |
| * | UTOPIA | United Territories of Polynesian Islanders' Alliance
| |
| * | UTOPIA | Urban Target Outreach Project in America
| |
| * | UTOPIA | Urban Transport Options for Propulsion Systems and Instruments for Analysis
| |