 | Orphaned Land - Unsung Prophets & Dead Messiahs Metal |  26.01.2018 |
 | Orphans Of Dusk - Spleen Metal |  28.04.2023 |
 | Orphean Passage - Apart Metal |  30.04.2024 |
 | Orpheus - [Nowa Płyta] Metal | nieustalona |
 | Orpheus Omega - Emberglow Metal | 24.07.2024 |
 | Orpheus Omega - Wear Your Sins Metal | 29.03.2019 |
 | Orplid - Deus Vult Metal | 25.09.2020 |
 | Orthodox - A Door Left Open Metal | 06.06.2025 |
 | Orthodox - Learning To Dissolve Metal | 19.08.2022 |
 | Orthodox - Proceed Metal | 30.06.2022 |
 | Orthodoxy - Ater Ignis Metal | 23.09.2022 |
 | Orthodoxyn - Orthodoxyn Metal | 01.01.2025 |
 | Oryx - Lamenting A Dead World Metal | 30.04.2021 |
 | Oryx - Primordial Sky Metal | 18.10.2024 |
 | Oshiego - Jaljalut Metal | 14.01.2022 |