- Olga Scheps
- One Bit
- Os Gatos
- Océano
- ORGEL
- Original Mirrors
- Oana DJ
- OSURO
- Odem Arcarum
- Ocean Architecture
- Olde Style
- O-N-E.Wu zzi
- Ocean Towers
- Old Haunts
- Of Angeline
- One Song Foundation
- Orbs
- Oliver Lindberg
- ONEBOI
- Owl & the Pussycat
- Original Backing Tracks
- Otchenga Zoom
- Orbiter
- One Reason Left
- Obscure
- Oskar Flood
- Olga Pasichnyk
- Outskirts of Infinity
- Otis Williams
- Ozadu.Music
- Ocha
- Ornament
- ODD EYE CIRCLE
- One Sixth Of Tommy
- On June
- Otem Rellik
- Orbital
- Oppenheimer
- Osoulfox
- Onionbrain
- Oska2
- OG Rolly
- Oberman Knocks
- Other Star People
- Ommatidia
- 欧岩辉
- Ontayso
- Orchestra Ensemble
- O'Bryan
- Onesidezero
- Olivia Ruiz
- Orphan Hate
- Oorora、Iguchi Yuka
- odol
- obylx
- Ossification
- Oscar Stagnaro
- Order of Isaz
- Oliver Dearan
- One Chance
- Orgasmic
- OTB
- Olivera
- OVA
- Oliver Hacke
- Orchestre National De L'Opera De Monte Carlo
- ONEUS
- Oige
- 欧阳珊
- Ornithos
- Ohanami
- Oliver James
- Oh Susannah
- Ottersgear
- Ophélie Gaillard
- Orixa
- Oleg Byonic
- Oil Tasters
- Oly
- Our Marvelous Lives
- Oscar Peterson
- OSRIN
- Omar Giammarco Quinteto
- One Right Turn
- Orchestra Virunga
- Our Last Rain
- OS101
- Opium Moon
- Outsized
- Otto Hejnic
