- Until the Ribbon Breaks & Lucius
- Until the Ribbon Breaks & Run the Jewels
- Until the Ribbon Breaks & Wilkins, Emoni
- Until the Ribbon Breaks with Homeboy Sandman
- Until the Ribbon Breaks with Lucius
- Until the Ribbon Breaks with Wilkins, Emoni
- Until They Bleed
- Until We Are Ghosts
- Until We Die
- untiljapan
- Untitled (Japanese idol group)
- untitled (halo)
- Untitled Band Project, The
- Untitled Project of Maks SF
- Unto Ashes
- Unto Others (heavy metal band from Portland, Oregon)
- Unto The Wolves
- Untold (UK electronic producer)
- Untoten
- Untouchable (Korean Hip-Hop Group)
- Untouchable 3
- Untouchables, The (DJ Wich & Rasco)
- Untouchables, The (Austrian Rhythm & Blues)
- Untouchables, The (mid 80s US ska/mod revival band)
- Untouchables, The (60s/70s UK reggae on Trojan, single "Tighten Up")
- Untsakad
- Untung Sonjaya
- Unturned
- Unusual Cosmic Process (Downtempo artist)
- Unusual Demont
- Unusual Suspects (UK hip hop)
- Unveil
- Unveil the Strength
- Unverkalt
- Unviar
- UNVS
- Unwanted, The (Irish Band)
- Unwed Mothers
- Unwed Sailor
- Unwell (Ambient/drone/experimental electronic music artist Daniel Holideigh)
- UNWELL (Rock/pop-punk band)
- Unwind, DJ (American Producer & Remixer)
- Unwinding Hours, The (Scottish alternative rock band)
- UNWISH
- Unwoman
- Unword
- Unworthy (Southern California Deathcore)
- Unwound (US post‐hardcore band)
- Unwrapped (hip‐hop songs covered in jazz style)
- Unwritten Law (1990- current American rock band)
- Unwritten Pages
- Unya (Finnish band)
- Unyielding Love (Grindcore/experimental band from Belfast, Northern Ireland)
- Unzane
- Unzucht
- Unzucht feat. Saltatio Mortis
- Uochi Toki (Italian hip-hop band)
- Uomini di mare
- Uomini in frac
- Uoti, Henna
- Up & Down
- Up Close
- Up dharma Down
- Up Dharma Down
- Up for Nothing
- Up from Here (Pop Punk)
- Up Front
- Up Hygh
- Up To Eleven (Romanian Alt. Rock Group)
- Up Up Down Down Left Right Left Right B A Start
- Up Up Girls (Kakko Kari)
- Up With People
- Up With People (Up With People! was the international educational and cultural organization which aims to encourage understanding among people of all nations.)
- UP-BEAT
- Up, $kin
- Up, Ari
- Up, Bustle & Out
- UP! (Hungarian band)
- UP10TION
- UPA Dance
- Upa!
- Upadhyay, Harsh
- Upadhyay, Purushottam
- UPAFTER, The
- Upbeat, The
- Upbeats, The (New Zealand drum n bass duo)
- Upbeats, The feat. Baxter, Tasha
- Upbeats, The feat. Joe Dukie
- Upbeats, The feat. Mara TK
- Upbeats, The feat. Worboys, Ned
