Orizzon

Heavy Metal · Brazil

1 Album

Örk Bastards

Thrash Metal · Russia

1 Album

Orkblut

Black Metal · Belgium

2 Albums

Orkus

Black Metal · Germany

3 Albums

Orlog

Black Metal · Germany

3 Albums

Orlok

Black Metal · Finland

5 Albums

Orm

Doom Metal · United States

2 Albums

ORM

Black Metal · Denmark

5 Albums

Orme

Doom Metal · United Kingdom

2 Albums

Ormgård

Black Metal · Sweden

2 Albums

Ormsdóttir

Metal · Brazil

1 Album

Ormskrik

Thrash Metal · Norway

1 Album

Ornamentos del Miedo

Funeral Doom Metal · Spain

10 Albums

ORO

Post-Metal · Sweden

2 Albums

Orodruin

Doom Metal · United States

3 Albums

Orodruin

Black Metal · Netherlands

3 Albums

Öröm

Doom Metal · Hungary

4 Albums

Oromet

Funeral Doom Metal · United States

2 Albums

Orotoro

Progressive Metal · France

6 Albums

Orphalis

Death Metal · Germany

4 Albums

Orphan

Deathcore

2 Albums

Orphanage

Death Metal · Netherlands

5 Albums

Orphaned Land

Progressive Metal · Israel

11 Albums

Orphans of Doom

Metal · United States

2 Albums