- O
- OO
- OO
- OO
- OOak
- OakOb
- ObObl
- OblOC
- OCOce
- OCEOct
- OctOcu
- OcuOdd
- OddOdi
- OdiODZ
- OeOff
- OffOff
- Offogo
- ogoOh
- OhOHN
- OhnOje
- OjeOKA
- OKAOku
- OkuOla
- OlaOld
- OldOle
- OleOli
- OliOli
- OliOls
- Ols
- OmaOme
- OmeOmn
- OmnOna
- OnaOne
- OneONE
- Oneone
- OneONI
- OniOnl
- OnlOny
- OnyOos
- OosOpe
- OpeOpp
- OprORA
- OraOrb
- OrbOrc
- OrcOrd
- OrdOrg
- OrgOri
- OriOri
- OriOrm
- OrmOrq
- OrqOrs
- OrsOru
- Osb
- OsbOse
- OseOsm
- OsmOst
- OstOth
- OthOtt
- OttOty
- OtyOur
- OurOut
- OutOut
- OutOut
- OutOve
- OveOvi
- OviOwe
- OweOxa
- OxbOZ
- Oz
- ozz
- Oakenfold, Paul feat. Lacey, Tiff
- Oakenfold, Paul feat. Lacey, Tiff
- Oakenfold, Paul feat. Little Nikki
- Oakenfold, Paul feat. McCluskey, Angela
- Oakenfold, Paul feat. Murphy, Brittany
- Oakenfold, Paul feat. Phillips, Grant‐Lee
- Oakenfold, Paul feat. Spitfire
- Oakenfold, Paul feat. Tawiah
- Oakenfold, Paul feat. Tedder, Ryan
- Oakenfold, Paul feat. Thompson, Hunter S.
- Oakenfold, Paul feat. Torrini, Emilíana
- Oakenfold, Paul feat. Vadney, Robert
- Oakenfold, Paul feat. Werner, Carla
- Oakenfold, Paul feat. Young, Christopher
- Oakenfold, Paul featuring Murphy, Brittany
- Oakenfold, Paul vs. Afrika Bambaataa & Soulsonic Force
- Oakenfold, Paul, Goss, Matt & Concrete Sneakers, The
- Oakenfold, Paul, ZHU & Velvet Cash
- Oakenshield
- Oakerson, Big Jay
- Oakes, Arjuna & Serebii
- Oakey, Philip & Moroder, Giorgio
- Oakey, Philip & Moroder, Giorgio
- Oakey, Philip with Moroder, Giorgio
- Oakhands
- OAKK
- Oakk, Breezy
- Oakland, Guy
- Oakland, Max
- Oakley Riot
- Oakley, Charly (Australian singer/songwriter)
- Oakley, Michael (U.K. synthwave artist/producer)
- Oakley, Michael feat. Phoenix, Dana Jean
- Oakman (French band)
- Oaks & Fahia (Spanish prog group)
- Oaks Worship
- Oaks, Chris (christian rapper)
- Oaks, Ely
- Oaks, Ely & Lavinia Hope
- OaKs, The
- Oakstones, The
- Oaktree (Belgian electronic music producer)
- Oakwite
- Oakwood
- Oakwood Station
- Oamen Samuel (Benny Zanda is the stage name for the artist, Oamen Samuel Osehoje is the official birth name.)
- Oanh, Hoàng
- Oanh, Hoàng & Trung Chỉnh
- Oar (Australia, Metal)
- Oasis (Noel & Liam Gallagher)
- Oasis (Omar-S and Shadow Ray)
- Oasis (’70s US rock band)
- Oasis 4you (Mexican Christian music group)
- Oasis Chorale
- Oasis Ministry (Christian band)
- Oasis Worship
- Oat, Senior (deep house, amapiano, gqom, afro soul)
- Oates, Jackie
- Oates, Jackie & Spiers, John
- Oates, John
- Oath (An alias of Steven Waddell, used in this Heavy Metal solo project based in Edinburgh, Scotland, UK, started in 2018.)
- Oath to Order (USA metalcore/deathcore)
- Oath, Das
- Oath, The (German heavy doom metal)
- Oathbound (Progressive metalcore band from Seattle)
- Oathbreaker (Belgian post‐black metal band)
- Oathless
- Oaths, The
- Oatmello
- Oats, Case
- Oattes, Bernard
- Oatumn
- Oaty. (lo‐fi artist)
- OAU (OVERGROUND ACOUSTIC UNDERGROUND)
- OB (DnB Producer (North London))
- OB OBrien feat. Drake & Preme
- Oba Oba Samba House
- Obadiah Parker
- Obake
- Obani (Obani)
- Öbarna
- Obas, Beethova
- Obata, Minako “mooki”
- Obata, Takahiro (jazz pianist, keyboardist)
- Obata, Yukari
- OBB (Oswald Brothers Band)
- Obbie Messakh (Artist of JK Records)
- Obe Dve
- Obè, Amir
- Obè, Amir feat. PARTYNEXTDOOR
