Orthodox - Sentencia
ss, 2009, Alone records SPA (white vinyl)
Orthodox - Sentencia
ss, 2009, Alone records SPA (black vinyl)
Orphaned Land - The Forbidden Tracks
n, 2019, Night of the Vinyl Dead ITA
Origin of Infinity - The Last Day on Earth
n, 2020, Origin of Infinity
Organismos - Manejos Invisibles
n, 2011, Me Saco un Ojo Records UK
Ordo Inferus - Invictus et Aeternus
n, 2014, Doomentia CZ
Orden Ogan - Final Days
ss, 2020, AFM D - clear vinyl
Orcrist - Fallen
n, 2011, Aphelion UK
Oppressor - The Demos
n, 1993, Hammerheart NL (2024) blue vinyl
Onslaught - The Force
ss, 1986, High Roller D (2019)
Omen - Teeth of the Hydra
n, 1989, Black Beard ITA (2021)
Omen - Into the Arena
n, 2012, No Remorse GRE
Omega Infinity - Solar Spectre
n, 2020, Seasons of Mist FRA
Olde - The Gates of Dawn
n, 2013, Soulseller NL
Old Mans Child - Slaves of the World
n, 2009, Floga GRE (2018)
October Tide - In Splender Below
n, 2019, Agonia PL
Obtest - Auka Seniems Dievams
n, 2001, Leda Takas LIT (2011)
Obtest - Amžina Aušra
n, 2011, Ledo Takas LIT