Obnoxious Youth

Heavy Metal

3 Albums

Obolus

Doom Metal

2 Albums

Obrero

Stoner Metal

2 Albums

Obscene Illusion

Melodic Death Metal

1 Album

Obscuro

Black Metal

1 Album

Ocean Chief

Metal

8 Albums

Ockra

Metal

2 Albums

Octinomos

Black Metal

4 Albums

October Tide

Death-Doom Metal

7 Albums

Odyssey

Stoner Metal

2 Albums

Ofdrykkja

Post-Metal

4 Albums

Ofermod

Black Metal

9 Albums

Offerstigen

Sludge Metal

4 Albums

Ola Englund

Progressive Metal

5 Albums

Ominous

Thrash Metal

2 Albums

Onda Makter

Black Metal

3 Albums

Ondskapt

Black Metal

5 Albums

One Without

Alternative Metal

2 Albums

Opeth

Progressive Metal

14 Albums

Ophthalamia

Death Metal

4 Albums

Orbit Culture

Melodic Death Metal

9 Albums

Orcultus

Black Metal

1 Album

Ordos

Stoner Metal

4 Albums

Ormgård

Black Metal

2 Albums