- OAMI
- Oana Cătălina Chiţu
- O.A.R.
- Oarausi
- Oarfin Records Presents
- Oars
- Oasi
- Oasis
- Oasis
- Oasis
- Oasis and Friends
- Oasis Band
- Oasis de Tergit
- Oasis de Tikemkemt
- Oasis Middle Eastern Ensemble
- Oasis of Inner Light
- Oasis Praise
- Oasis Quartet
- Oat
- Oath
- Oathean
- Oatman
- Oatmeal
- Oatmeal for the Foxhounds
- Oaty Love
- Oavat
- Oax
- Oaxerai
- Oaxtree
- OB
- O.B.
- O.B. Addy
- O.B. Bryant
- O.B. Buchana
- O.B. Buchana
- OB Frank Lord's
- Ob Ignitt
- O.B. Jackson
- OB OBrien
- OB People
- OB Shubham
- OB Tha Cat
- OB1
- OB4
- OB6
- Oba Frank Lord's
- Oba Funke
- Oba Oba Samba House
- Oba Oba Samba House;Fernandinho Beatbox
- Oba Rowland
- Oba Simba
- OBA "The Voice Of Dark Beat"
- Obad
- Obadale Adepoju
- Obadia
- Obadiah One
- Obadiah Parker