| U/S | UltraSonic 
| Others |
| U/S | UltraSound
| Others |
| U/S | UnderSection
| Others |
| U/S | Upper Stage
| Others |
| U/S | Upstream
| Others |
| U/S | Urine Specimun
| Others |
| US | Sites in the United States
| Others |
| US | U Save
| Others |
| US | U. S. Capacitor
| Others |
| US | uf Soule
| Others |
| US | UltaSound
| Others |
| US | Ultimate Service
| Others |
| US | Ultimate Spas
| Others |
| US | Ultra Short
| Others |
| US | Ultra sound
| Others |
| US | Ultra Speed
| Others |
| US | Uncle Sam
| Others |
| US | Unconditioned Stimulus
| Others |
| US | Uncontested Shot
| Others |
| US | Uncultured Swine
| Others |
| US | Under Sea
| Others |
| US | Under Study
| Others |
| US | Unified System
| Others |
| US | Uniform System
| Others |
| US | Unione Sportiva
| Others |
| US | Unit Secretary
| Others |
| US | Unit Separator
| Others |
| US | Unit Standard
| Others |
| US | United Souls
| Others |
| US | United States
| Country |
| US | Universiteit van Stellenbosch
| Others |
| US | University School
| Others |
| US | University Student
| Others |
| US | Unusually Smart
| Others |
| US | Up Stage
| Others |
| US | Up-Start
| Others |
| US | Upper School
| Others |
| US | Upper Secondary
| Others |
| US | Upravlayemyi Sputnik
| Others |
| US | UpStage
| Others |
| US | Urban Sanctuary
| Others |
| US | Urban Success
| Others |
| US | User Services
| Others |
| US | User Story
| Others |
| US | Uterine Suspension
| Others |
| US | Uwe Schmidt
| Others |