- Underground Cities
- Underground Railroad
- Unit: 187
- Unida
- Usher&Monica
- Ulrich Drechsler Trio
- Unperishable Fall
- UJMC
- Urbanalog
- Ultramarine
- Unio Mystica
- Ultraviolence
- Unkle
- Until The Uprising
- Uncle Mountain
- U.C. WORKS
- Utumno
- Unclubbed
- Us, From Outside
- Uncle Skeleton
- Unity
- Unto Ashes
- U.S.D.A.
- Until Sunrise
- Ultralyd
- UsedToBeCool
- UV PØP
- Ukulele Heroes
- Ulrich P. Lask
- Under Electric Light
- UZU Believe Luv
- Uniklubi
- UZ（織田裕二）
- Ultra Milkmaids
- Underneath The Stars
- Unexpect
- Urban Dance Squad
- U Totem
- U-Men
- Ufmo
- Unexpected Allies
- Up And Down
- Union
- Union Pub
- Ufomammut
- Unina
- Uniform Choice
- Under the Lake
- Units
- U liebe
- Unaussprechlichen Kulten
- U.N.
- UCHUSENTAI:NOIZ
- Ulan Bator
- Unwritten Law
- Unitopia
- Usurper
- uri gagarn
- Undercroft
- Udo
- Unseen Terror
- U
- U.S. Maple
- Under Survalance
- Unbowed
- Utah Jazz
- Until My Funerals Began
- Unbirth
- Uno Actu
- Ulige Numre
- Underdog
- Us3
- Uratsakidogi
- Unladylike
- Urban Assault
- Unearthly Trance
- Uncle Earl
- Universal Poplab
- Underneath What
- Urgrund
- Uto Karem
- Uusitalo
- Urkraft
- Unholy Grave
- Underset
- Under Spinning Lights
- United
- UX
- U-N-I
- UV GIRLS
