 | One Tail, One Head - Worlds Open, Worlds Collide Metal |  05.10.2018 |
 | Onfodt - Norden Metal |  13.08.2021 |
 | Onheil - In Black Ashes Metal | 14.07.2023 |
 | Oni - Loathing Light Metal | 17.06.2022 |
 | Onirik - Curling Serpents Under Stone Metal | 30.05.2025 |
 | Onirik - The Fire Cult Beyond Eternity Metal | 25.09.2020 |
 | Onirophagus - Endarkenment Metal |  19.02.2019 |
 | Onirophagus - Revelations From The Void Metal | 17.01.2025 |
 | Onlap - Waves Metal | 14.06.2024 |
 | Onslaught - Generation Antichrist Metal | 07.08.2020 |
 | Onslaught - Origins Of Aggression Metal | 23.05.2025 |
 | Ontborg - Following The Steps Of Damnation Metal | 24.02.2023 |
 | Onward - Of Epoch And Inferno Metal | 28.10.2022 |
 | Oomph! - Richter Und Henker Metal | 11.07.2023 |
 | Oomph! - Ritual Metal | 18.01.2019 |