Orphans of Dusk

Doom Metal · New Zealand

2 Albums

Orphean Passage

Metal · South Africa

1 Album

Orpheum

Metal · United Kingdom

2 Albums

Orpheus Blade

Power Metal · Israel

2 Albums

Orpheus Omega

Melodic Death Metal · Australia

8 Albums

Örs

Death Metal · Türkiye

1 Album

Orso

Progressive Metal · Switzerland

3 Albums

Ortega

Sludge Metal · Netherlands

5 Albums

Ortel

Heavy Metal · Czechia

10 Albums

Orthank

Black Metal · Russia

5 Albums

Orthodox

Metal · United States

5 Albums

Orthodox

Metal · Spain

9 Albums

Orthodoxy

Death Metal · Spain

2 Albums

Ortsul

Black Metal · Poland

2 Albums

ORUM

Post-Metal · Portugal

1 Album

Oryad

Symphonic Metal · United States

2 Albums

Oryon Rex

Nu Metal · United States

1 Album

ORYX

Sludge Metal · United States

7 Albums

Os

Death Metal · Hungary

3 Albums

Oscar and the Karma

Metal · United Kingdom

1 Album

Oscillotron

Drone Metal · Sweden

5 Albums

Osculum Infame

Black Metal · Greece

1 Album

Osculum Infame

Black Metal · France

4 Albums

Osculum Serpentis

Black Metal · United States

7 Albums