- Owl John
- Owl Paws
- Owl Service, The
- Owlle
- Owls (rock band from Chicago)
- Owls of the Swamp
- Owls, The
- Owman, Christine
- Öwnboss & Sevek
- Ownglow (UK drum & bass artist; Sam Reeves)
- Owsey
- Owsley
- Owusu, Genesis
- Owusu, Genesis feat. Callinan, Kirin J
- OWV (Our only Way to get Victory)
- OX (Canadian lo-fi indie rock band)
- Ox (Brighton, UK rock band)
- Ox (rapper Christopher Wilkes, performs on the MadWorld OST)
- OX (german post-grunge Band)
- Ox, Matt
- ox33n
- Oxa, Anna
- Oxa, Anna & Leali, Fausto
- Oxa, Anna feat. Leali, Fausto
- Oxen ((Swedish Indie Rock Band))
- Oxford & Co.
- Oxford Camerata
- Oxford Camerata, Summerly, Jeremy
- Oxford Collapse
- Oxford Drama
- Oxford University Press
- Oxford University Press
- Oxford, Charlie
- Oxford, Doña
- Oxhole
- Oxia
- Oxia feat. Miss Kittin
- Oxide & Neutrino
- Oxide & Neutrino feat. Harvey
- Oxide & Neutrino feat. Kaish
- Oxide & Neutrino feat. Kowdean
- Oxide & Neutrino feat. Swiss, Skat D, Kaish & Harvey
- Oxiplegatz
- Oxlade
- Oxmo Puccino
- Oxmo Puccino & Jazzbastards, The
- Oxmo Puccino avec K-Reen
- Oxmo Puccino feat. Alexandre Varela Da Veiga & Dadoo
- Oxmo Puccino feat. Booba
- Oxmo Puccino feat. Caballero & JeanJass
- Oxmo Puccino feat. Célèbre Bauza, Le
- Oxmo Puccino feat. Dany Dan
- Oxmo Puccino feat. Lino
- Oxmo Puccino feat. Slake, Keity
- OXO (early 80s US dance pop group "Whirly Girl")
- Oxo 86
- Oxtoby (Neil Oxtoby)
- Oxxo Xoox
- Oxxxymiron (Russian rapper)
- Oxy (Dream pop/shoegaze band from Brazil)
- Oxyd
- Oxygen (British trance duo)
- Oxygen Destroyer (Seattle Death/Thrash Metal)
- Oxygen feat. Britton, Andrea
- Oxygen Thief
- Oxymoron (German punk rock band)
- Oxymorrons, The
- Oxys, The (Austin, TX rock band)
- Oy (Swiss/German electro duo Joy Frempong & Marcel Blatti)
- Oya & Bora
- Oyama (band from Iceland)
- Oyelakin, Tosin
- Oyelana, Tunji
- Oyinda (Nigerian-British singer-songwriter)
- Öykü & Berk
- Oyls
- Oysher, Moishe
- Oysterband
- Oysterband feat. Tabor, June & Chumbawamba
- Oysterband featuring Celtas Cortos
- Oysterhead
- OZ (visual kei)
- Oz (Finnish/Swedish metal band)
- Oz One
- Ozaki, Yutaka
- Ozan (Turkish singer)
- Ozark Henry
- Ozark Henry feat. Accoe, Lize
- Ozark Henry feat. Bettens, Sam
- Ozark Henry feat. Elisa
