| Underhill, Ben |
| Underline the Sky |
| Underminded |
| Underneath The Gun |
| Underoath |
| Undersave |
| Underscore |
| Undertaker |
| Undertones |
| Undertow |
| Underwater |
| Underwater City People |
| Underworld |
| Undo Sec |
| UNDOWN |
| UNDRESSD |
| Undrop |
| Unduller |
| Undun |
| Undying |
| Unearth |
| Unexpect |
| Unfinished Thought |
| Unflicted |
| Unforeseen |
| Unforgettable |
| Unga Scener |
| Ungdomskulen |
| Unge Ferrari |
| UNGKIRKE |
| Ungu |
| Unha Pintada |
| Unheilig |
| Unherd |
| Unhindered |
| Unholy |
| Unholy Ghost |
| UNI Jazz Band One |
| UNI.T |
| Uniâo Da Ilha Do Governador |
| Unic |
| Unicorn |
| Unicorn Kid |
| Unicorns Fight Forever! |
| Unicq |
| Unida |
| Unidos De Vila Maria |
| Unidos Do Peruche |
| Unified Theory |
| Unified Tribe |
| Uniform Choice |
| Uniikki |
| UNiiQU3 |
| Unik GOD |
| Unik-Ko |
| Uniklubi |
| Uninvited |
| Unioin Station |
| Union |
| Union 13 |
| Union Carbide Productions |
| Union du son |
| Union Gap |
| Union J |
| Union, La |
| Union of Knives |
| Union of Sound |
| Union Pulse |
| Union Square |
| Union Station |
| Union Underground |
| UNIONE |
| Unions |
| Uniq |
| Unique |
| Unique |
| Unique II |
| Uniques |
| Unisoghn |
| Unison Square Garden |
| Unison (Windy City G/L Chorus) |
| Unit: 187 |
| Unit 4+2 |
| Unit 406 |
| Unitas |
| United Audio Singers |
| United Boys |
| United Choral Singers |
| United Colours of Sound |
| United DJ's |
| United Female Sounds Of R&B |
| United Future Organization |
| United Girls Of R&B |
| United House Of Prayer |
| United Kingdom Symphony |
| United Ladies Of Hip Hop And R&B |
| United Nations |
| United Nations Project |
| United Punks of America |
| United Pursuit |
