- O
- OO
- OO
- OO
- OO
- OafOak
- OaKObe
- OBEOBN
- ObnOca
- OcaOce
- OceOco
- OCSOct
- OctODD
- ODDODE
- ODEOdo
- OdoOf
- OfOff
- OffOff
- OffOgr
- OGROh
- ohOhm
- OhmOiz
- OizOka
- OkaOkl
- OklOla
- OlaOld
- OldOld
- OldOle
- OleOli
- OliOli
- OliOlo
- OlrOly
- OlyOm
- OmOme
- OmeOmn
- OmnON
- OnOne
- OneOne
- OneOne
- OneOne
- OneOnl
- Onl
- OnoOok
- OokOp
- OPcOpe
- OpeOPR
- OprOra
- OraOra
- OraOrc
- OrcOrc
- OrcOre
- OreOrg
- OrgOri
- OriOri
- OriOrm
- OrmOrp
- OrpOrq
- OrqOrt
- OrtOsa
- OsaOsc
- OscOsk
- OskOss
- Oss
- Oti
- OtiOtt
- Ott
- Our
- OurOut
- OutOut
- OutOut
- OutOve
- OveOve
- OveOwa
- OwaOwl
- OwlOxl
- Oxl
- ozz
- Oscar Jerome & Armon‐Jones, Joe
- Oscar Jerome feat. Akinnibi, Kaidi
- Oscar Jerome feat. MAURICE, Ms
- Oscar Jerome ft. La Havas, Lianne
- Oscar les vacances
- Óscar Lobete (Pianista)
- Oscar Lolang
- Oscar Lukas (Singer-songwriter)
- Oscar Medina
- Oscar Peterson (Oscar Peterson)
- Oscar the Grouch (Sesame Street muppet)
- Oscar The Wild (Adelaide indie-pop band)
- Oscar, Alexander
- Oscar, Brad
- Oscarcito (Oscar Eduardo Hernández)
- oscarhw
- Oscenrad
- Oscher, Paul
- Oschino
- Oscillation, The (UK drone ambient rock)
- Oscillian (synthwave from Sweden)
- Oscillian feat. Nina
- Oscu (Argentine youtuber, influencer and trap singer)
- Oscu & Elio
- Oscu & Flexo
- Oscu & Ra, Luck
- Oscu & Rusherking
- Osculum Infame (French black metal band)
- Oscuro (Musician & Producer)
- Osdorp Posse (Dutch hip hop group)
- Osdorp Posse & Nembrionic
- Osdorp Posse met Blind Justice
- Ose
- Osees (use also for Thee Oh Sees and Oh Sees)
- Osei The Seventh (Trinidadian pop artist living in London)
- Osenga, Andrew
- Osenga, Andrew & DeLoach, Emily
- OSESP
- OSESP, Karabtchevsky, Isaac
- Osgood, Kresten (Danish jazz drummer)
- OShauN, Everything & Tropkillaz
- Oshea
- Osher
- oshi (producer)
- Oshiego (Singaporean death/thrash metal)
- Oshima Brothers (Sean and Jamie Oshima)
- Oshima, Michiru (Japanese anime, film, TV & video game composer)
- Oshima, Sean (Australian-Japanese singer)
- Oshio, Kotaro
- Osho, Josh
- Osho, Josh & Childish Gambino
- Osho, Josh & Ghostface Killah
- Oshota
- OSHUN (female hip hop duo)
- Oshwa
- OSI (progressive rock band)
- Osi and the Jupiter
- Osi and the Jupiter feat. Aerial Ruin
- Osi and the Jupiter feat. Nemuer
- Osi and the Jupiter feat. Tithe
- Osi and the Jupiter feat. Wolcensmen
- Osiah
- Osiah feat. Ben Duerr
- Osibisa
- OSIE
- Osiecka, Agnieszka
- Osińska, Dorota
- Osiris (US funk band)
- Osiris (progressive rock band from Bahrain)
- OSIRIS
- Osiris Wolf
- Osíris, Conan (Portuguese singer/songwriter)
- Osiris, YK
- Osiris, YK feat. Kehlani
- Osiris, YK feat. Russ
- Osiris, YK feat. Snoop Dogg
- Osirois Music
- Osirus Jack (French-Senegalese rapper, 667/LDO)
- Osiva
- Oska (Maria Burger, singer-songwriter from vienna)
- Oska (DJ/Producer from Israel)
- Oskama Esteban
- Oskar (Ognjen Amidzic)
- Oskar
- Oskar (UK electronic duo Jonny Dawe & Nick Powell)
- Oskar Cyms
- oskar med k
- oskar med k & Joelle, Haley
- oskar med k & Marini
- Oskar, Griffin
