- O
- OO
- OO
- OOak
- OakObe
- ObeObs
- ObsOce
- OceOCT
- OctOda
- OdaODE
- ODEODU
- ODUOfe
- OfeOG
- OGOh
- OhOhl
- OhmOjo
- Ojookg
- okhOla
- OlaOld
- OldOle
- OleOli
- OliOlm
- OLMOma
- OmaOme
- OmeOmo
- OMPOnd
- OndOne
- Oneone
- oneONJ
- OnkOns
- Ons
- OosOpe
- OpeOpu
- OpuOra
- OraOrc
- OrcOre
- OreOri
- OriOri
- OriOro
- OroOrq
- OrqOrv
- OrvOsb
- OsbOsk
- OskOst
- Oth
- OthOtt
- OttOur
- OurOut
- OutOut
- OutOva
- OvaOve
- OveOwe
- OweOxf
- Oxf
- OZZ
- Odani, Misako
- Odar (Bosnian Black Metal from Sarajevo)
- Odawas
- Odbicia, W Witrynach
- ODC (Modern Rock and Metal project created and led by Celia Do)
- Odd (Norwegian singer/songwriter Odd Nordheim)
- Odd (Filipino post-rock band from Dumaguete)
- Odd Advantage, The (Ska band from Hemet, California)
- Odd Beholder (Swiss pop duo)
- Odd Børre
- Odd Chap
- Odd Couple (house artist)
- Odd Couple (German garage rock band)
- Odd Couple, The (US hip-hop duo Louis Logic & Jay Love)
- Odd Crew
- ODD EYE CIRCLE (South Korean girl group)
- Odd Future
- Odd Mob
- Odd Mob & OMNOM: HYPERBEAM
- Odd Mob feat. Blackman, Bertie
- Odd Mob, OMNOM & HYPERBEAM
- Odd Nosdam
- Odd Nosdam feat. Bailiff, Jessica
- Odd Numbers, The
- Odd Palace
- Odd Project
- Odd Robot
- Odd Signature (Bangladeshi Band)
- Odd Squad
- Odd Sweetheart
- Odd Thomas (Thomas Joseph Terry)
- Odd Tuesday
- Oddateee
- oddCouple feat. Woods, Jamila & Collins, Kweku
- ODDEEO
- Oddessey
- Oddfellows, The (The Oddfellows (Singapore Band))
- OddHenny
- Oddisee (DC hip hop producer/rapper)
- Oddisee feat. Diamond District
- Oddisee feat. Ragu, Priya & Sainte Ezekiel
- Oddisee feat. Real, Ralph
- Oddisee feat. Saint Louis, Olivier
- Oddisee feat. Saint Louis, Olivier
- Oddisee feat. Toine
- Oddities
- OddKidOut
- OddKidOut feat. Boy Beverly
- Oddko (Los Angeles based Industrial Metal band)
- Oddland
- oDDling
- ODDLIQUOR
- Oddly
- Oddly Casual
- Oddly, Yvie
- Oddly, Yvie ft. Mateo, Vanessa Vanjie
- Oddny (Norwegian softrock band)
- Oddprophet
- Odds (Canadian rock band)
- Odds Against Tomorrow (Portland OR band)
- Oddwin (US hip-hop producer)
- Oddy Jay (S9:87R)
- Oddział Zamknięty
- ODE (Finnish rap artist)
- Odeal
- Odee-loh
- Odell Julie (Indie rock artist from New Orleans, LA)
- Odell, Tom
- Odell, Tom & Lost Frequencies
- Odell, Tom feat. Merton, Alice
- Oden & Fatzo
- Oden, Bryant
- Oden, Loren
- Oden, Robert
- Oden, St. Louis Jimmy (blues singer and songwriter)
- Odense Assholes
- Odéon (Israeli jazz band)
- ODEONS
- Oder? (Argentinian Indie Rock Band)
- Odes of Ecstasy
- Odessa (UK Metalcore)
- Odessa (southern Californian folk singer Odessa Rose Jorgensen)
- Odessa (80's french coldwave)
- Odessa (Swedish Melodic Hard Rock)
- Odessa (released Odessa in 2015)
- Odessi
- ODESZA
- ODESZA feat. Barwick, Julianna
- ODESZA feat. Bizu, Izzy
- ODESZA feat. Bridges, Leon
