- Orquestra Tabajara
- Orquestra Tipica A.J. Pesenti
- Orquestra Tipica Criolla
- Orquestra Tipica de La Escuela Normal Veracruzana
- Orquestra Tipica de Tango de Puro Guapos
- Orquestra Tipica Select
- Orquestra Tipica Victor
- Orquestra Typicas
- Orquestra Was
- Orquesttra Melodias del 40
- Orquetsa Tipica Argentina
- Orquidea
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- Orred
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- Orrenmaa Band
- Orrick Ewing
- Orriel Smith
- Orriel Smith
- Orrin Bolton
- Orrin Evans Ortet
- Orrin Hatch
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- Orrin Tucker
- Orrin Tucker & His Orchestra
- Orrin Tucker With His Saxophone Orchestra & Sophis
- Orris
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- Orsa Spelmanslag
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- Orso
- Orson Family
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- Orson Scott Card
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- Orson Welles
- Ort Ensemble Wuppertal
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- Ortega The Omega
- Ortelli
- ORTF National Orchestra
- Orth
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