- Orange 9mm
- Orange and Lemons
- Orange Blossom
- Orange But Green
- Orange Goblin
- Orange Island
- Orange Juice
- Orange Moon
- Orange Mothers
- Orange Mothers / Hollywood Indians
- ORANGE RANGE
- Orange Street
- Orangeburg Massacre
- Oranger
- Oranges & Lemons
- Orazio Fantini
- Orbient
- Orbit Service
- Orbital
- Orch Symphonique Du Bresil
- Orchester & Chor Eric Frantzen
- Orchester Anthony Ventura
- Orchester der Tiroler Festspiele
- Orchester der Tiroler Festspiele;Gustav Kuhn
- Orchester der Vereinigten Bühnen, Wien (Dir.: C.Richter)
- Orchester des Wachregiments "Feliks Dzierzynsky", Berlin
- Orchester Gunter Gollash
- Orchester Martin Bottcher
- Orchestra
- Orchestra "Classic Music Studio", St. Petersburg;Alexander Titov
- Orchestra "Classical Music Studio", St. Petersburg;Alexander Titov
- Orchestra Bagutti
- Orchestra Baobab
- Orchestra Cattolica Sacro Cuore Milano, Coro Sinfonico Di Bie
- Orchestra da Tre Soldi
- Orchestra del Maggio Musicale Fiorentino
- Orchestra del Maggio Musicale Fiorentino;Karita Mattila
- Orchestra Del Sol
- Orchestra del Teatro di San Carlo;Gustav Kuhn
- Orchestra Del Teatro La Fenice
- Orchestra Dell' Arena Di Verona
- Orchestra des Concerts Colonne
- Orchestra Di Roma
- Orchestra Ethiopia
- Orchestra Filarmonica della Scala
- Orchestra Filarmonica Marchigiana;Gustav Kuhn
- Orchestra Franco Bagutti
- Orchestra Gigi Chiappin
- Orchestra Nazionale Sinfonica della RAI
- Orchestra Of San Marco, Luigi Varese
- Orchestra of the D'Oyly Carte Opera Company
- Orchestra Popolare La Notte Della Taranta
- Orchestra Popolare Russa Di Cherepovets
- Orchestra Roma Giubileo Diretta Da Stefano Principini
- Orchestra Sinfonica della RAI di Torino
- Orchestra Sinfonica Nazionale
- Orchestral Manoeuvres in the Dark
- Orchestre Africa Djembé
- Orchestre Andalou d'Israël
- Orchestre De La Suisse Romande
- Orchestre de Paris' Soloists
- Orchestre Du Théâtre Royal
- Orchestre National de Barbès
- Orchestre National de la Radio Polonaise, Katowice with Antoni Wit
- Orchestre National du Bolchoï, Théâtre de Russie, sous la direction de Marc Ermler
- Orchestre Philharmonique de Radio France
- Orchestre Rouge
- Orchestre Symphonique de Prague
- Orchestre Union Sanluisera
- Orchid
- Order From Chaos
- Order Of The Ebon Hand
- Ordo Rosarius Equilibrio
- Oreja
- Orenda Fink
- Orfeas Peridis
- Orfeo Negro
- Orford String Quartet
- Orgamilk
- Organ;Orchestra;Anna Lee;Portia Nelson;Marni Nixon;Evadne Baker
- Organic Audio
- Organika
- Organized Konfusion
- Organized Noize
- Orgy
- Orhan Olmez
- Oriental Angels
- Orietta Berti
- Orietta Berti, Demo Morselli Orchestra
- ORIGA
- Origami
- Origin
- Origin Unknown
- Original Broadway Cast
- Original Broadway Cast;Benjamin Rayson;Teri Ralston;Barbara Lang;Gene Varrone;Beth Fowler
- Original Broadway Cast;Elaine Tomkinson
- Original Broadway Cast;Glynis Johns
- Original Broadway Cast;Laurence Guittard
- Original Cast
- Original Cast of Billy Elliot