 | OU - one Alternatywa |  10.05.2022 |
 | Ou - II: Frailty Metal |  26.04.2024 |
 | Oubliette - The Passage Metal | 13.07.2018 |
 | Oudeziel - The Finest Hour Rock | 21.11.2025 |
 | Oumou Sangaré - Timbuktu Folk/Ludowa | 29.04.2022 |
 | Our Common Sense - Harbinger Of Calamity Metal | 19.11.2021 |
 | Our Lady Peace - Spiritual Machines II Rock | 22.04.2022 |
 | Our Mirage - Lifeline Metal | 24.08.2018 |
 | Our Place Of Worship Is Silence - Disavowed, And Left Hopeless Metal | 27.08.2021 |
 | Ouranos Ensemble - Woodwind Quintets Klasyka | 08.02.2019 |
 | Out Came The Wolves - Strange Fate Rock | 28.10.2016 |
 | Out Of This World - Out Of This World Metal | 14.01.2022 |
 | Outcast - Awaken The Reason Metal | 20.02.2012 |
 | Outer Heaven - Infinite Psychic Depths Metal | 21.07.2023 |
 | Outer Heaven - Realms Of Eternal Decay Metal | 12.10.2018 |