Obtained Enslavement

Symphonic Black Metal

4 Albums

Octavia Sperati

Doom Metal

3 Albums

Octohawk

Metal

2 Albums

Odio Deus

Black Metal

1 Album

Odium

Black Metal

1 Album

Okkultokrati

Sludge Metal

8 Albums

Old Funeral

Death Metal

1 Album

Old Man’s Child

Melodic Black Metal

7 Albums

Omegashift

Metal

1 Album

Omit

Doom Metal

3 Albums

Omnus

Avant-Garde Metal

1 Album

Once Awake

Melodic Death Metal

4 Albums

One Tail, One Head

Black Metal

3 Albums

Orcustus

Black Metal

4 Albums

Order

Black Metal

3 Albums

Ormskrik

Thrash Metal

1 Album

Ov Hell

Black Metal

1 Album

Owane

Progressive Metal

4 Albums

Pagan’s Mind

Power Metal

6 Albums

Pagefire

Heavy Metal

10 Albums

Pantheon I

Black Metal

3 Albums

Peccatum

Avant-Garde Metal

5 Albums

PelleK

Metal

15 Albums

Perished

Black Metal

4 Albums