| UTT | UCAS Teacher Training 
| Others |
| UTT | Ultimate Table Tennis
| Others |
| UTT | Ultimate Time Tracker
| Others |
| UTT | Ultimate Touring Trail
| Others |
| UTT | Ultra Turbo Technology
| Others |
| UTT | Umtata, South Africa
| Others |
| UTT | Unattenuated
| Others |
| UTT | Under The Table
| Others |
| UTT | Underground Technology Team
| Others |
| UTT | Unicorn Talk Tuesdays
| Others |
| UTT | Unified Targeting Tool
| Others |
| UTT | Uniform Traffic Ticket
| Others |
| UTT | Union Transportation Trail
| Others |
| UTT | Unit Trust of Tanzania
| Others |
| UTT | United Talmud Torah
| Others |
| UTT | United Traders Token
| Others |
| UTT | United Traffic Team
| Others |
| UTT | Universal Targeting Tool
| Others |
| UTT | Universal Test Target
| Others |
| UTT | Universal Time Trial
| Others |
| UTT | Universidad Tecnologica de Tijuana
| Others |
| UTT | University of Technology of Troyes
| Others |
| UTT | University of Texas at Tyler
| Others |
| UTT | University of Trinidad and Tobago
| Others |
| UTT | Unnamed Turbosliders Team
| Others |
| UTT | Up To Today
| Others |
| UTT | Urban Terrain Training
| Others |
| UTT | Urinary Tract Tumours
| Others |
| UTT | User Threshold Time
| Others |
| UTT | Utility Tactical Transport
| Others |