- Odean Pope
- O.L.D.
- Omar Santana
- Octopus
- Old Wainds
- Oroku
- Offenbach Project
- Ole Paus
- 欧羿
- Occult
- Ordinance
- Obscenity
- Orange Factory
- Open Space
- Otoe
- Of Blackest Oceans
- Our People Versus Yours
- Olympos Mons
- Ourself Beside Me
- Open Mind
- Owiny Sigoma Band
- Owls
- 欧阳林
- O.M.G组合
- Osculum Infame
- Overthrow
- Orchid
- Overland
- 欧霖
- Old Horned Sheep
- Operation Cleansweep
- Orchestre National de Barbes
- Ophthalamia
- 欧邦聪
- OP8
- 欧阳清风
- OJS48
- Oscar Brown, Jr.
- 欧阳雄波
- Opossaum
- Old Corpse Road
- Ohm:
- Oliver Lieb
- Ordog
- 欧阳袁源
- Oteil Burbridge
- oscillator
- Ollabelle
- OVERCOME
- ON OFF
- Olivia Newton John
- OhHeezung
- Only Son
- One Repubic
- Outersect
- Orchidectomy
- Overground
- O.F.D
- Oskar Hallbert
- One Little Plane
- Olen'k
- OMFG
- October 31
- Opeth[月亮之城]
- Outsidaz
- Olle Nyman
- Oceans of Time
- October Equus
- Our Waking Hour
- O'Shea
- Orphalis
- Old Funeral
- Oceana
- On air乐队
- Omne Datum Optimum
- Ophelia
- Orion Rigel Dommisse
- Ostinato
- Orcivus
- Otep
- Overcast
- Open Hand
- One Way System
- Oath to Vanquish
- Odi Acoustic
- 欧阳阿成
- Ostblockschlampen
- O'Brother
- Oranger
- Odious Mortem
