Obbrobrius - Daisy's Creepy Tales

Obituary - Dying of Everything

Occulsed - - Antegnosis

October Tide - The Cancer Pledge

Octoploid - Beyond The Aeons

Okult - God Of Genocide

Old Grave - From the Dephts of the Grave

Old Year - No Dissent

Omicidio - Premature Exequie

Omnicidal - The Omnicidalist

Omnium Gatherum - May The Bridges We Burn Light The Way

Onheil - In Black Ashes

Onsetcold - Apocalyptic Sleep

Ophidian Memory - Seraphim

Ophiolatry - Serpent's Verdict

Orbit Culture - Death Above Life

Orpheus Omega - Emberglow

Outer Heaven - Infinite Psychic Depths

Outlying - Oblivisci