Outer Heaven

Death Metal

4 Albums

Outlaw Order

Sludge Metal

2 Albums

Outlier

Nu Metal

1 Album

Out of the Mouth of Graves

Death Metal

2 Albums

Outrun the Sunlight

Progressive Metal

7 Albums

Outworld

Progressive Metal

2 Albums

Overcast

Metal

6 Albums

Overcome

Metalcore

7 Albums

Overkill

Thrash Metal

24 Albums

Oversoul

Doom Metal

1 Album

Overwhelmed

Doom Metal

1 Album

Ovid's Withering

Deathcore

5 Albums

Ovnev

Atmospheric Black Metal

4 Albums

Ov Ruin

Blackened Death Metal

2 Albums

Ov Sulfur

Deathcore

4 Albums

OWDWYR

Technical Death Metal

1 Album

Owlbear

Heavy Metal

2 Albums

Owlscry

Black Metal

1 Album

OXEN

Metal

3 Albums

Oxygen Destroyer

Death Metal

5 Albums

O Zorn!

Sludge Metal

3 Albums

Paaris

Metal

3 Albums

Pacmanthemovie

Mathcore

2 Albums

Paddock Park

Metalcore

1 Album