- O
- OO
- OO
- OO
- OOak
- OakOb
- ObeObl
- OblOC
- OCOce
- OCEOct
- OctOcu
- OcuOdd
- OddOdi
- OdiODZ
- ODZOff
- OffOff
- OffOGM
- OgnOh
- OHOHN
- OHNOje
- OjeOKA
- OKAOku
- OkuOla
- OLAOld
- OldOle
- OleOli
- OliOLI
- OliOls
- OlsOma
- OMAOme
- OmeOmn
- OmnOn
- OnOne
- OneOne
- ONEOne
- OneOne
- ONEOnl
- OnlOnu
- OoO
- oOoOpe
- OpeOPP
- OppOr
- OROra
- OraOrc
- Orcorc
- OrcOre
- OreOri
- OriOri
- OriOrl
- OrlOrp
- OrpOrq
- OrqOrt
- OrtOsa
- OsaOsc
- OscOsl
- OslOst
- ote
- oteOtr
- OtrOtt
- OttOur
- OurOut
- OutOut
- OutOut
- OutOve
- OveOve
- OveOWE
- OweOwl
- OwlOxo
- Oxt
- Oziozz
- Oscar Lolang
- Oscar Lukas (Singer-songwriter)
- Oscar Maydon & Fuerza Regida
- 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)
- 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)
- Osenga, Andrew
- Osenga, Andrew & DeLoach, Emily
- OSESP
- Oshea
- Osher
- oshi (producer)
- Oshiego (Singaporean death/thrash metal)
- 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
- Osibisa
- Osiecka, Agnieszka
- Osiris (undisambiguated)
- 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
- Osirus Jack (French-Senegalese rapper, 667/LDO)
- Osiva
- Oska (Maria Burger, singer-songwriter from vienna)
- Oska (DJ/Producer from Israel)
- Oskar (Ognjen Amidzic)
- Oskar
- Oskar Cyms
- oskar med k
- oskar med k & Joelle, Haley
- oskar med k & Khalid
- oskar med k & Marini
- Oskar, Griffin
- Oskar, Karl (Swedish singer-songwriter)
- Oskar, Lee
- Oskarbi
- Oskee, Tay
- Osker
- Oski (Australian DJ & producer)
- OSKI (Belgian rapper & producer Oscar Santos)
- Oskord
- Oskorri
- Oskr
- Oskura (Cliff Lin & Lucy Martin)
- Oslender, Simon (Keyboardist from Aachen, Germany)
- Oslin, K.T.
- Oslo (lo‐fi beatmaker)
- Oslo Domkor
