- UndreamedPanic (brony artist Jeremy Parisian)
- UndreamedPanic feat. Metajoker
- Undrop
- Undurskin (UK hardcore band)
- Undying (American metalcore band)
- Undying Inc (Metal band from New Delhi, India)
- Undying Mynd
- Une Bonne Soirée
- Une Misère (Icelandic hardcore band)
- Une touche d'optimisme
- Unearth (metalcore band from Boston, MA)
- Unearthed Elf
- Unearthly (Brazillian Blackened Death Metal Band)
- Unearthly Trance
- Uneducated Kid (Korean rapper)
- Uneducated Kid feat. CHANGMO
- Uneducated Kid feat. Northfacegawd
- Uneducated Kid feat. Okasian
- Uneducated Kid feat. Park, Jay & Paul Blanco
- Uneducated Kid feat. Paul Blanco & Park, Jay
- Uneducated Kid feat. Quiett, The
- Uneducated Kid feat. SUPERBEE
- Ünen, Nezih
- Unending Thread, The
- Unendlich (USA black metal)
- Üner, Ersay
- Unessential Oils
- Uneven Eleven (English/Belgian/Japanese trio)
- Uneven Structure
- Uneven, The
- Unexist (Italian hardcore DJ and producer Francesco Iapicca)
- Unexpect
- Unextraordinary Gentlemen
- UnFaced
- Unfaithful Ways, The
- unfamouslouie (french beatmaker)
- Unfarben
- Unfathomable Ruination
- UnFauno
- Unfawler
- Unfazed
- Unfinished Sympathy, The
- Unfinished Thought
- Unflesh (US metal band)
- Unflirt
- Unfoonk
- Unfoonk ft. 24Heavy & Slimelife Shawty
- Unforeseen
- Unforged
- Unforscene (British band, Ben Bower, Benji Muscat, Will Bower)
- Unforscene feat. Russell, Alice
- Unfortunate Sons
- Unfound Records
- Unfound Reliance (Swedish melodic death metal and metalcore band)
- Unfun (punk rock band)
- Unfurl (Post-hardcore Band From Pittsburgh, PA)
- Unfurling (Hardcore from Chile)
- Unfyros (Black Metal from Finland)
- Unga, Jordis
- Ungar, Jay & Mason, Molly
- Ungar, Jay & Mason, Molly with Swingology
- Ungar, Melanie
- Ungar, Ruth
- Ungar, Shmueli (American Hasidic singer, songwriter and entertainer)
- Ungdomskulen
- Unge Ferrari (Norwegian hip hop)
- Ungelenk (Schauorchester Ungelenk)
- Ungemach
- Unger, Flo
- Unger, Justin
- Unger, Remy (Dutch Progressive-House DJ & Producer)
- Ungerleider, Jacob
- Unglued (drum & bass artist; Joshua Brown)
- Unglued & Degs
- Unglued feat. Durin, Esther
- Unglued feat. Durin, Esther & Elsie
- Unglued feat. Warren, Collette
- Ungods
- Ungu
- Unguided, The
- Unguided, The feat. Kürsch, Hansi
- Unguided, The feat. Zardonic
- Unhappily Ever Now
- unhappybirthday
- Unharvested (Metalcore band from Manchester, UK)
- Unheard Prayers
- Unheilig
- Unheilig & Fischer, Helene
- Unheilig feat. Bourani, Andreas
- Unheilig feat. Fischer, Helene
