Bandas de Metal Extremo

Oak

🇵🇹Portugal2018

Oak, Ash & Thorn

🇺🇸United States2013

Obituary

🇺🇸US1988

Obscene Ceremony

🇪🇸Spain2025

Obscura

🇩🇪Germany2002

Obscure

🇪🇸Spain1988

Obscure Sphinx

🇵🇱Poland2008

Obsidian Kingdom

🇪🇸Spain2005

Obsidious

International2020

Obús

🇪🇸ES1980

Occult

🇳🇱NL1992

Oceans

International2017

Oceans of Slumber

🇺🇸United States2011

Odraza

🇵🇱PL2009

Of Feather and Bone

🇺🇸United States2012

Ofermod

🇸🇪SE1996

Old Man's Child

🇳🇴NO1993

Old Moon

🇺🇸US2024

Omega Infinity

International2018

Omegavortex

🇩🇪Germany2007

Omnium Gatherum

🇫🇮FI1996

On Thorns I Lay

🇬🇷Greece1992

Ondfødt

🇫🇮Finland2013

Ondskapt

🇸🇪SE2000

One Day In Pain

🇸🇪SE2020

One of Nine

🇺🇸United States2022

Onirophagus

🇪🇸ES2011

Onslaught

🇬🇧GB1982

Opera Diabolicus

🇸🇪Sweden2006

Opera Magna

🇪🇸ES1997