Bands

Nomen Omen

Venezuela · Death Metal

Northern Krig

Norway · Black Metal

NorTroll

Norway · Melodic Black/Gothic Metal

Nosk of the Void

United States · Black Metal

Nostoc

Costa Rica · Progressive Groove Metal

No Stone

Argentina · Psychedelic Stoner/Doom Metal

November Fire

United States · Doom

Nvlvs

Denmark · Black/Death Metal

Obey the Moon

Mexico · Melodic Death Metal

Obligatory Fiend

New Zealand · Deathcore

Obnounce

Slovenia · Black/Death Metal

Obscure Infinity

Germany · Death Metal (early); Melodic Death Metal (later)

Obsidian Tide

Israel · Sludge / Post / Progressive

Ocean Districts

Estonia · Post-Metal

Old Moon

United States · Melodic Black Metal

Once Awake

Norway · Groove Metal/Metalcore

Onomasy

Spain · Technical Death Metal

Orbis de Ignis

Finland · Gothic/Doom Metal

Organ Dealer

United States · Grindcore

Orlag

France · Black/Death Metal

Orob

France · Black

Orphean

Italy · Melodic Death Metal

Ossuary Wraith

United States · Black Metal

Otargos

France · Black Metal