- Obo Okrapong
- Obo Okrapong/Addy
- Oboade
- Oboe
- Oboe: Alfred Hertel, Flöte: Elisabeth S ; Orgel. F
- Oboken
- Obonyo B
- Obonyo Joseph
- O.Boogie
- Oboto Sukuma
- Obour
- O'Boyle
- obp
- O.B.R.
- Obrafour
- Obray Ramsey
- Obre4
- O'Brian Eselu
- O'Brien
- O'Brien
- O'Brien Party of 7
- O'Briens Peerless Quintette
- Obrigado Esparro
- Obrint Pas
- Obroke
- O'Brother
- O'Brother
- Obrotka
- Obruthion