Oosterhuis, Trijntje
Opatovský, Róbert
Open Hand
Opera IX
Operation Ivy
Opeth
OPM
Opshop
Opus III
Ora, Rita
Orange 9mm
Orange Blue
Orange Caramel
Orange Goblin
Orange Range
Orb
Orbison, Roy
Orbit, William
Orbital
Orden Ogan
