Onda Makter

Black Metal

3 Albums

Ondskapt

Black Metal

5 Albums

One Without

Alternative Metal

2 Albums

Opeth

Progressive Metal

14 Albums

Ophthalamia

Death Metal

4 Albums

Orbit Culture

Melodic Death Metal

9 Albums

Orcultus

Black Metal

1 Album

Ordos

Stoner Metal

4 Albums

Ormgård

Black Metal

2 Albums

ORO

Post-Metal

2 Albums

Oscillotron

Drone Metal

5 Albums

Otyg

Metal

2 Albums

Ötzi

Metal

1 Album

Outshine

Gothic Metal

4 Albums

Overdrive

Heavy Metal

6 Albums

Overflash

Death Metal

2 Albums

Ov Shadows

Black Metal

4 Albums

Oz

Metal

10 Albums

Oþalan

Atmospheric Black Metal

1 Album

Paganizer

Death Metal

22 Albums

Pain

Industrial Metal

10 Albums

Pain of Salvation

Progressive Metal

13 Albums

Palantír

Power Metal

3 Albums

Pandaemonia

Black Metal

1 Album