- Outkast
- Ougenweide
- Outlandish
- Our Lady Peace
- Out of Eden
- Outlawz
- Ours
- Our Last Night
- Outspoken
- Outlaws
- Ouran High School Host Club
- Outsidaz
- Outasight
- Outhere Brothers
- Oum
- Our Waking Hour
- Outline In Color
- Out of Frame
- Outta Control
- Out Hud
- Outbreak
- Outmatch
- Outbreakband
- Ousanousava
- Oum Shatt
- Ought
- Ou Est Le Swimming Pool
- Our Heart's Hero
- Out of the Grey
- Outerspace
- Outsiders Joy
- Outshyne
- Our Hollow, Our Home
- Out Of My Hair
- Ouroboros
- Outfit
- Out of Your Mouth
- Outro Lugar
- Outlast
- Out of Control
- Outl4w
- Outlines
- Out to Win
- Outloud
- Outloudz
- Out of Phase
- Out Cold
- Our Daily Bread
- Oui 3
- Our Ceasing Voice
- Our People Versus Yours
- Out of Office
- Our Broken Garden
- Outlett
- Outrun the Gun
- Out of Sight
- Ourlives
- Ourself Beside Me
- Out of the Blue
- Outburst
- Outlaw Heroes Standing
- Outhouse
- Outcast
- Outlander
- Oumou Sangaré
- Out Of Date
- Our Lost Infantry
- Outrageous Cherry
- Outtrigger
- Out of Grace
- Outer Space
- Outer Circle
- Outside
- Out of Focus
- Ouzo the band
- Outline
- Outsized
- Our Brother the Native
- Outwork
- Our Sunday Affairs
- Out of Order
- Out-Or
- Our Dad
- Outrage
- Outcold
- Outatime
- Out of Luck