- O
- OO
- OO
- OO
- OO
- OOak
- OakObe
- ObeObl
- OblObs
- OBSOce
- OceOch
- OchOct
- OctOdd
- OddOde
- OdeOdi
- OdiOdy
- OdyOfe
- OfeOff
- OffOga
- OgaOh
- OhOha
- OhaOi
- OiOjo
- OjoOka
- OkaOku
- OkuOla
- OlaOld
- Oldold
- OldOle
- OleOli
- OliOli
- OLIOls
- OlsOM
- omOma
- OmaOme
- OmeOmn
- OmnOn
- OnOne
- OneOne
- OneOne
- OneOne
- OneONL
- ONLOno
- OnoOob
- OOcOP
- OpaOpe
- OpeOpp
- OppOr
- OrOra
- OraOrb
- OrbOrc
- OrcOrd
- OrdOrf
- OrfOri
- OriOri
- OriOrl
- OrlOro
- OroOrq
- OrqOrt
- OrtOrx
- OryOsb
- OsbOse
- OseOsm
- OsmOst
- OSTOte
- OteOto
- OtoOtt
- OttOu
- OuaOUR
- OurOut
- OutOut
- OutOut
- OutOve
- OveOve
- OveOvt
- OvvOwe
- OweOxh
- OxiOza
- OzaOzo
- OzoOZZ
- Oberogo, Famous & Sango, Marta
- Oberogo, Famous & Villar, María
- Oberogo, Famous, Núñez, Miki & Sabela
- Oberogo, Famous, Núñez, Miki & Sabela
- Oberon (Greek psytrance)
- Oberon (space metal band from Ada, Oklahoma, USA)
- Oberon, DJ (UK techno/trance artist; Les Spalding)
- Oberpichler, Rale
- Oberritter Dóra ft. Lotfi, Begi
- Oberschlesien
- Oberst, Conor
- Oberst, Conor & Blondshell
- Oberst, Conor and Mystic Valley Band, The
- Oberti, Luca
- Oberti, Samuele
- Obese Turtles, The (Kimya Dawson side project)
- Obeses
- OBESØN (toronto ambient, electronic, experimental, r&b, hip_hop)
- Obey City
- Obey Me! Boys (Obey Me! character group)
- Obey the Brave
- Obey the sun
- Obey, Ebenezer
- OBEYER
- Obfusc (Joseph X. Burke)
- OBGMs, The
- Obi (UK britpop band)
- Obi Best (formerly called Colorforms)
- Obia le Chef
- Obia le Chef avec Caballero & JeanJass
- Obiat
- Obibox
- Obie Hans
- Obie WanShot
- Obieglo, Andreas
- Obiman
- Obin, André
- Obinrin Trio
- Obiols Campi, Arnau (Arnau Obiols Campi)
- Obispo, Pascal
- Obispo, Pascal & Angi, Giordana
- Obispo, Pascal & Cabrel, Francis
- Obispo, Pascal & Frégé, Élodie
- Obispo, Pascal & Gredy, Alexia
- Obispo, Pascal & Mars, Mélissa
- Obispo, Pascal & St-Pier, Natasha
- Obispo, Pascal avec Zazie
- Obispo, Pascal duo avec Calogero
- Obispo, Pascal feat. Baby Bash
- Obispo, Pascal feat. Calogero
- Obispo, Pascal feat. Casal, Luz
- Obispo, Pascal feat. Christophe
- Obispo, Pascal feat. Christophe
- Obispo, Pascal feat. Hallyday, Johnny
- Obispo, Pascal feat. La Troupe des Dix Commandements
- Obispo, Pascal feat. N'Dour, Youssou
- Obispo, Pascal feat. N’Dour, Youssou
- Obispo, Pascal feat. Pagny, Florent
- Obispo, Pascal feat. Stoner, Sam
- Obispo, Pascal feat. Zazie
- Obispo, Pascal, Willem, Christophe, Fiori, Patrick, Alizée
- Obito
- Obits
- Obituary (US death metal band)
- Object Unto Earth
- Objekt (TJ Hertz)
- Objektif
- Objetivo Birmania
- OBK (Spanish band)
- OBKATIEKAT
- OBLADAET (Russian rapper)
- OBLADAET & Enzo From The Block
- OBLADAET & lil krystalll
- Obladaun (Russian parody rap)
- Oblea, Mark (Filipino Artist)
- obli (US multi-instrumentalist and electronic producer)
- Obligaatiot
- Obligatorisk Tortyr
- Obliging Victims, The
- Oblio (Alt-rock trio based in Pasadena California)
- Oblique (New Wave/Electronic)
- Oblique (synthwave, on" Ladies of Synth" RetroSynth compilation)
- Oblique (Bangladeshi band)
- Oblique Brown
- Obliterate (Slovak grindcore)
- Obliterate (Canadian deathcore)
- Obliterations
- Obliveon
- Oblivia (Australian band)
- Oblivian, Jack (US musician Jack Yarber)
