| Osbourne, Tony |
| Osbourne, Tony & His Orchestra |
| Oscar |
| Oscar "Papa" Celestin |
| Oscar Alemán |
| Oscar Alemán Y Los Cinco Caballeros |
| Oscar and the Wolf |
| Oscar Anderle |
| Oscar Andrade |
| Oscar Athie |
| Oscar Benito |
| Oscar Benton |
| Oscar Brown, Jr. |
| Oscar Castro-Neves |
| Oscar Castro?Neves |
| Oscar Chávez |
| Oscar Cortez |
| Oscar D'León |
| Oscar de la Hoya |
| Oscar de Leon |
| Oscar Enestad |
| Oscar G. |
| Oscar Gaetan |
| Oscar Garrido |
| Oscar Hammerstein |
| Oscar Hammerstein II |
| Oscar Isaac |
| Oscar Klein |
| Oscar Levant |
| Oscar Lopez |
| Oscar Mack |
| Oscar Martinez |
| Oscar Moore |
| Oscar Moore Quartet |
| Oscar Neves |
| Oscar Peterson |
| Oscar Peterson & the Very Tall Band |
| Oscar Peterson Four |
| Oscar Peterson Quartet |
| Oscar Peterson Trio |
| Oscar Pettiford |
| Oscar Prince |
| Oscar Rabin |
| Oscar Rabin Band |
| Oscar Rivera |
| Oscar Salguero |
| Oscar Scheller |
| Oscar Terraf |
| Oscar The Grouch |
| Oscar Ticas |
| Oscar Toney, Jr. |
| Oscar Wolfe |
| Oscarcito |
| Oschino |
| Oschino & Sparks |
| Osdorp Posse |
| Ose |
| OSE |
| Oséas Silva |
| Oshri |
| Oshy |
| Osi Lewin |
| Osian Ellis |
| Osibisa |
| Osie Johnson |
| Oskar Linnros |
| Oskar Oiestad |
| Oskar Sala |
| Osker |
| Osland Jazz Orchestra |
| Oslo Gospel Choir |
| Osman |
| Osmani Garcia |
| Osmar Milito |
| Osmar Pérez |
| Osmo's Cosmos |
| Osmosphere |
| Osser, Glen & His Orchestra |
| Osser, Glenn Orchestra |
| Ossian |
