| UNB |
| Unbeknownst |
| Unbelievable Truth |
| Unblinded |
| Unborde All Stars |
| Unbranded |
| Unbroken |
| Unbroken Shards |
| Unbunny |
| Unção Ágape e Fernandinho |
| Uncertain |
| UNCHAIN |
| Unchained |
| Unchained Melody |
| Unción Tropical |
| Uncle B. |
| Uncle Bill |
| Uncle Bomb |
| Uncle Bonsai |
| Uncle Brian |
| Uncle Chucc |
| Uncle Chuck |
| Uncle Dave Macon |
| Uncle Dirty Toes |
| Uncle Earl |
| Uncle East |
| Uncle Ezra Ray |
| Uncle Festive |
| Uncle Fucker |
| Uncle George |
| Uncle Ho |
| Uncle Howie |
| Uncle Jim |
| Uncle Kracker |
| Uncle Lucius |
| Uncle Luke |
| Uncle Murda |
| Uncle Partytime |
| Uncle Phil |
| Uncle Ray |
| Uncle Reo |
| Uncle Sam |
| Uncle Sam Band |
| Uncle Sam MC |
| Uncle Stizz |
| Uncle Tupelo |
| Uncle Vandy |
| UncleBac |
| Unclebot |
| UncleFlexxx |
| Unclenathannn |
| Unclubbed |
| UNCOMMENN |
| Uncon |
| Unconditional |
| Uncut |
| Uncut Pages |
| Und wieder Oktober |
| Unda Dawg |
| Unda Presha |
| Undacava |
| Undacover |
| UNDADASEA |
| Undeclinable Ambuscade |
| Under a Dying Sun |
| Under A Spell |
| Under Byen |
| Under Control |
| Under Cover |
| Under Radaren |
| Under the Bed |
| Under The Flood |
| Under the Influence of Giants |
| Under the Mango Tree |
| Under the Oak |
| Under the Sun |
| Under the Weather |
| Undercover |
| UnderCover Collective |
| Undercover Divas |
| Undercroft |
| Underdark |
| Underdog Project |
| Underground Gangsta |
| Underground Kingz |
| Underground Rad |
| Underground Solution |
| Underground Sound of Lisbon |
| Underground Sound Unit |
| Underground Warriors |
| Undergrünnen |
| Underhill, Ben |
| Underline the Sky |
| Underminded |
| Underneath The Gun |
| Underoath |
| Undersave |
| Underscore |
| Undertaker |
| Undertones |
