Old Soul

Post-Metal · United States

5 Albums

Old Throne

Black Metal · Mexico

1 Album

Old Tomb

Doom Metal · Slovakia

1 Album

Old Wainds

Black Metal · Russia

6 Albums

Old Year

Death-Doom Metal · United States

1 Album

Ølgod

Stoner Metal · Germany

1 Album

Olhava

Atmospheric Black Metal · Russia

7 Albums

Olio Tähtien Takana

Avant-Garde Metal · Finland

3 Albums

Olivia Neutered John

Blackened Death Metal · United Kingdom

5 Albums

Olkoth

Black Metal · United States

1 Album

OLTAS

Death Metal · Netherlands

1 Album

Ol' Time Moonshine

Metal · Canada

4 Albums

Oltretomba

Black Metal · Italy

2 Albums

Olymp

Heavy Metal · Germany

3 Albums

Olympus Lenticular

Progressive Metal · United States

6 Albums

Om

Stoner Metal · United States

6 Albums

Omb

Avant-Garde Metal · Israel

1 Album

Omega

Heavy Metal · United Kingdom

1 Album

Omega Diatribe

Metal · Hungary

5 Albums

Omega Infinity

Death Metal · Australia

2 Albums

Omega Lithium

Industrial Metal · Croatia

3 Albums

Omega Massif

Post-Metal · Germany

5 Albums

Omega Monolith

Sludge Metal · Greece

2 Albums

Omegashift

Metal · Norway

1 Album