Artists starting with O
- Oppera
- Oppie Jahe
- Oppressed
- Oppressor
- Opshop
- Opthalamia
- Optimistic
- Optimo
- Optimus Ska
- Option 1
- Opus
- Opus III
- Opus Orange
- Or Just Not
- Oracle
- Oragic
- Oral Bee
- ORAN 'JUICE' JONES
- Orange 9mm
- Orange And Lemons
- Orange Blue
- Orange Goblin
- Orange Juice
- Orange Organics
- Orange Range
- Oranssi Paska
- Oratorio
- Oratory
- Orba Squara
- Orbison
- Orbison Roy
- Orbit
- Orbital
- Orchard
- Orchestral Manoeuvres In The Dark
- Orchid
- Orden Ogan
- Order From Chaos
- Order Of The Fly
- Ordinance
- Ordinary Boys
- Ordo Draconis
- Ordo Rosarius Equilibrio
- Ore Ska Band
- Orenda Fink
- Organ
- Organic Critters
- Organic Revolution Orchestra
- Organism 12
- ORGANIZED KONFUSION