- Osner Gultom
- Osnir Alves
- Osny Melo
- Osny Silva
- OSO
- OSO
- OSO
- OSO
- OSO
- Oso Closo
- Oso El Roto
- OSO Finsengi
- OSO & HAJI
- O'so Krispie
- Oso Loc
- Oso Mocoso
- oso rey
- Oso Rich
- O.S.O.K.
- Osoma/The Northside Taliban
- Oson
- Osong
- Osorezan
- OsoRich
- Osota
- O.S.P
- Osprey
- Osric
- O.S.S.
- Oss Emellan
- Ossan
- Ossatura
- Ossi Duri
- Ossi Runne
- Ossian
- Ossian Dox
- Ossie
- Ossie and the Upsetters
- Ossie Davis
- Ossie Dellimore
- Ossie Gad
- Ossie Hibbert
- Ossie Scott
- Ossining
- Ossip Gabrilovich
- Ossip Gabrilowitsch
- Ossipov Orchestra of Folk Instruments
- Ossipov Russian Folk Instruments Orchestra Soloist
- Ossman-Dudley Trio
- Osso
- Osso Exotico
- Osso Vaidoso
- Osssy
- Ossy Oneal
- Ossy Pardeller
- Ossy Renardi
- Ossy Renardy
- Ost