Ook

Doom Metal

1 Album

Opium Warlords

Metal

6 Albums

Oppressive Melancholy

Black Metal

1 Album

Oranssi Pazuzu

Black Metal

8 Albums

Orbiter

Doom Metal

2 Albums

Order of Nosferat

Black Metal

7 Albums

Order of the White Hand

Black Metal

4 Albums

Ordinance

Black Metal

2 Albums

Ordog

Doom Metal

5 Albums

Orfvs

Melodic Black Metal

2 Albums

Organ Grinder

Brutal Death Metal

1 Album

Orlok

Black Metal

5 Albums

Otorten

Atmospheric Black Metal

5 Albums

Paara

Black Metal

2 Albums

Paganus

Funeral Doom Metal

1 Album

Paisaunt

Atmospheric Black Metal

3 Albums

Pakeni

Death Metal

2 Albums

Panorama

Heavy Metal

1 Album

Panssarituho

Death Metal

2 Albums

Pantheon of Blood

Black Metal

4 Albums

Parade of Souls

Gothic Metal

2 Albums

Parakletos

Symphonic Black Metal

1 Album

Paraxism

Death Metal

1 Album

Perdition Winds

Black Metal

4 Albums