- O
- OO
- OO
- OOak
- OakObe
- Obs
- ObsOce
- OceOck
- OckOcu
- OcuODE
- OdeOdo
- OdoOfe
- OfeOff
- OffO
- OGXOHE
- OhGOJ
- OJOka
- OkaOl
- OlOld
- OldOle
- OleOli
- OliOli
- OliOLU
- OluOmb
- OmbOmn
- OmnOna
- OOne
- OneOne
- OneONE
- ONEOnl
- Onlooi
- OoiOpe
- OpeOpp
- OppOra
- OraOrb
- OrbOrc
- OrdOrg
- OrgOri
- OriOrl
- OrlOrp
- OrpOrt
- OrtOs
- OsOsc
- OscOsm
- OsmOT
- OTOtr
- OtrOtt
- OttOur
- OurOut
- OutOut
- OutOve
- OveOvi
- OviOwe
- OweOxo
- OxoOzr
- OZROZZ
- Odom, Leslie, Jr., Miranda, Lin‐Manuel, Goldsberry, Renée Elise, Soo, Phillipa, Jackson, Christopher & Cast
- Odom, Leslie, Jr., Ramos, Anthony, Diggs, Daveed, Onaodowan, Okieriete, Miranda, Lin‐Manuel, Soo, Phillipa, Jackson, Christopher & Cast
- Odonis Odonis (Canadian industrial/electronic band)
- Odotte Bakari no Kuni
- Odradek (Brazilian band)
- Odroerir
- Odsen (Spanis producer & DJ, Joel Oliver)
- Odua, Yaniss
- ODUMODUBLVCK
- ODUMODUBLVCK feat. Amaarae
- ODUMODUBLVCK feat. Civilian, Bloody & Wale
- ODUMODUBLVCK feat. Cruel Santino & Shmurda, Bella
- ODUMODUBLVCK feat. ECko Miles & Zlatan
- ODUMODUBLVCK feat. Fireboy DML
- ODUMODUBLVCK feat. Reeplay
- ODUMODUBLVCK feat. Teezee & PsychoYP
- Odunsi (The Engine)
- ODV, Timo
- Odys
- Odysayh
- Odyssea (Italian power metal band)
- ODYSSEE (lo‐fi hip‐hop artist)
- Odyssey (70's/80's US disco act)
- Odyssey (mid 90s German eurohouse act)
- Odyssey (early 70s Motown soul act, key track “Battened Ships”)
- Odyssey (Dan Swanö side project, Swedish progressive metal band)
- Odyssey (instrumental metal trio from Spokane, WA)
- Odyssey (originally US family act Lopez Sisters, now UK fronted by Steven Collazo)
- Odyssey (Spanish progressive metal band)
- Odyssice (Dutch melodic/prog rock group)
- ODZ (Swedish hip hop)
- Oe, Senri
- Oedipe Nautique (French alt./prog group)
- Oedipus (L.A. based power trio)
- Oedipus Apartment Complex
- Oeffling, Tommy
- Oehl
- Oeley
- Oerding, Johannes
- Oerding, Johannes & Müller, Ina
- Oerding, Johannes & Sebastian Krenz
- Oertli, Danny
- Oesch, Melanie & Fischer, Helene
- Oesch's die Dritten
- OesteSanto
- of all living things
- Of All Things
- Of All We Cherish
- Of Allies
- Of Blackest Oceans (New Zealand metalcore)
- Of Blessings and Burdens (Amherst, MA post-hardcore band)
- Of Colours (Modern Metal band from Frankfurt/Main, Germany)
- Of Deities and Dust (Doom metal from Dallas, TX)
- Of Feather and Bone (American hardcore punk/death metal band)
- Of Gentlemen & Cowards
- Of Good Nature
- Of Gray
- Of Ice (American thrash metal band)
- Of Limbo
- Of Machines
- Of Mice & Men
- Of Monsters and Men
- of Montreal
- of Montreal feat. Monáe, Janelle
- of Montreal feat. Solange
- Of Night And Light (Artist)
- of persephone (siren-rock band)
- Of Roofs, Genes and Stolen Meanings
- Of Spire & Throne
- Of the Land
- Of the Son
- Of the Trees
- Of the Vine (US post-rock)
- Of the Wand & the Moon
- Of Truth
- Of Us Giants
- of Verona (LA indie rock/electropop group)
- Of Virtue
- Of Virtue feat. Wolfe, Kalie
- Of Vizions
- Of Water
- Of Wolves
- Ofard
- Ofarim, Esther
- Ofarim, Gil
- OFB
- Ofb1t
- Ofdrykkja
- Ofege
- Ofelia (Iga Krefft)
