- OnDahl
- Orfeh
- Obscure Anachronism
- Ombre
- Orion Riders
- Old Fashion
- Old Lost John
- Otilia
- Orquesta de Perros
- Oddfellow's Casino
- Orthodox Celts
- Oscar Alemán
- Outlandish
- Ortega
- Opium Dream Estate
- Oxes
- Om Kalsoum
- Ortolan
- Onry Ozzborn
- Osaka Popstar
- October Wolves
- Olaf Henning
- One Project
- Order of the White Hand
- Offending
- Oathless
- Out Out
- Orthonorma
- Olga Scotland
- Oxya
- Ozone
- One Day Remains
- October
- Owsley
- OPA
- Omar Torrez
- On Volcano
- Oliver Lukas
- Omega Massif
- O.G. Spanish Fly
- Ozone Cocktail
- Olfar
- Obsidian Shell
- Overcast Sound
- Odessa
- Odium
- OK KID
- Omnia
- 欧阳靖&Hollis
- Os Morcegos
- Otesanek
- One Starving Day
- Oli.P
- O.Z.
- 欧宇涵
- OWK
- Old Man Markley
- Ouida
- Oliver Jiang
- Oliver Von Essen
- 欧阳靖&Storm&Bella
- Omyiga
- Octinomos
- Orchis
- Offset
- Ogonek
- Omega Drive
- Oceansize
- Our Sleepless Forest
- Oliver Weers
- OT 乐队
- Orb Featuring David
- Onze H30
- Orleya
- Oro Solido
- Ocean's Two
- OBLIVION DUST
- omarjan
- One Step Away
- Ofenbach
- Ola Kvernberg Trio
- Operator
- On The Virg
- Olly Knights
- Our voice
- Orchestra Scala Reale
- Opium Warlords
- Ooyy
- OK Cobra
- On
