Artists starting with O
- Outro Pin
- OUTROEU
- Outshyne
- Outsidaz
- Outside the Lines With Rap Genius
- OutsideOUTSIDE
- Outsider (Ireland)
- Outsiders
- Outsiders & Jebroer
- Outsiders (Dutch band)
- Outsiders (US band)
- OV7
- OVA Blasé
- OVAN & VINXEN
- OVAN (오반)
- Ovens
- Over Atlantic
- Over the Garden Wall
- Over The Ocean
- Over the Rhine
- Over9000
- Overcoats
- OverDoz.
- OverEnglishMan
- Overflow
- Overkill
- OVERLUST
- Overseer
- OVERSTREET
- OverTime
- Overwatch
- OVERWERK
- Ovi
- Ovid
- Ovide
- OVL (Icon Okee x Moufpece Da Rippa)
- Ovlov
- OVÖ (SWE)
- OVO Sound Radio
- Ovrkast.
- Ovrnite
- Ovy On The Drums
- Owe Thörnqvist
- OWEL
- Owen
- Owen (IL)
- Owen (오왼) (KOR)
- Owen Campbell
- Owen Pallett
- Owen Sheers
- Owl & Mouse
- Owl City
- Owl City & Carly Rae Jepsen
- Owl City & Carly Rae Jepsen
- Owl City & Yuna
- Owl Eyes
- Owl John
- OWLORDIE
- Owls
- Owls in the Attic
- Owsey
- OWSLA
- Ox (Rapper)
- Oxbow
- Oxia
- Oxide & Neutrino
- Oxlade
- Oxmo Puccino
- OXN DAWIDH & OXN XALIN
- Oxon
- Oxon/DJ Smutek
- OxT
- Öxxö Xööx
- Oxxxymiron
- Oxymoron
- Oya noire
- OYABUN
- Oyche Doniz
- Oyinda
- Öykü Gürman
- Oyster Magazine
- Oysterband
- Oysterhead
- OZ
- OZ (Ormaz & Zeurti)
- Oz Sparx
- Ozan Doğulu
- OzanMG
- Ozark Henry
- Ozbi
- Özcan Deniz
- Özdemir Erdoğan
- Ozel
- Ozelot
- Özgün
- Ozkar
- Özlem Tekin
- Ozma
- Ozols
- Ozomatli
- Ozonna
- Ozuna
- Ozuna & Anitta
- Ozuna & Anuel AA
- Ozuna & Ele A “El Dominio”