Jazz / Fusion Artists, Casts, Authors
- ABJ
- Alter Ego
- Anita O'day & Peterson
- AURORIZE
- Bill O'Connell/Nico Catacchio/Alessandro Napolitano
- Erin O'Brien
- Ernesto Aurignac
- IWAO OCHI
- O-katte
- OAM Trio
- OBATALA SEGUNDO
- Oddjob
- Oka Satoshi
- OMA SOUND
- OMD
- ON THE MOUNTAIN
- Oncenth Trio
- ONJQ(OTOMO YOSHIHIDE NEW JAZZ QUINTET)
- ONJT+
- Onyx Collective
- Orbiturtle
- Ordinary Stance
- ORI-TOSHI-TAISHI
- Orquesta F.I.B JOURNAL
- ORQUESTA NUDGE!NUDGE!
- Ortance
- OTTOTTRIO
- OVAL SOUND ORCHESTRA
- OWL Trio
- OZ NOY
- Pat O'Day
- Roman Ott & Kurt Rosenwinkel
- The Ossan Band
- Ulysses Owens Jr. feat.Rene Marie.Theo Bleckmann.Alicia Olatuja & Joanna Majoko
- OOKUBO KEI TO KENCHIKU
- OCHAME NA JAZZ TRIO
- Eivind Aarset
- Akua Allrich
- Anita O`Day
- Ian O`Brien
- EUGEN CICERO
- Eugen Cicero Trio
- オイゲン・キケロ・トリオ
- Ake Persson
- Oscar Rocchi Quintet
- OSCAR CASTRO NEVES
- Oscar Peterson
- OSCAR PETERSON & COUNT BASIE
- Oscar Peterson & Dizzy Gillespie
- オスカー・ピーターソンwithジョー・パス
- OSCAR PETERSON QUARTET,THE
- Oscar Peterson Trio with Herb Ellis
- The Oscar Peterson Trio with Herb Ellis & Ray Brown
- OSCAR PETTIFORD
- OSCAR MOORE
- Oscar Moore Quartet feat.Carl Perkins
- OZMA
- Ozomatli
- Ozomatli
- OTTMAR LIEBERT
- Oded Tzur Quartet
- Otmaro Ruiz
- O'DONEL LEVY
- オナージェ・アラン・ガムス
- ONOMATOPEL
- OMAR SOSA
- オマー・アビタル
- OMAR HAKIM
- Various Artists
- OLA ONABULE
- Original Dixieland Jazz Band
- オリジナル・ビッグ・フォア
- オリバー・セイン
- OLIVER NELSON
- OLIVER STRAUCH GROOVIN' HIGH FEAT.RANDY BRECKER
- Olivier Antunes
- オリヴィエ・カイヤール
- Organ Explosion
- Orquesta Joe Cain
- Orquesta Del Viento
- ORQUESTA LIBRE
- オルナ
- Olu Dara
- OREGON
- ORE BAND
- orange pekoe
- ON OFF
- Orchestra USA
- Orchestra U.S.A. - John Lewis - Eric Dolphy - Jim Hall
- AUSTIN CROMER
- AUSTIN PERALTA
- Australian Allstars
- Ohta San and His Ukulele
- Otis Spann
- Otis Trio
- OTIS BLACKWELL
- OTIS RUSH FEAT.ERIC CLAPTON
- OTIS REDDING
- ODELL BROWN
- Audrey Morris