 | OhGr - Undeveloped Elektroniczna |  10.05.2011 |
 | Okkervil River - I Am Very Far Rock | 10.05.2011 |
 | Okkyung Lee - Noisy Love Songs Blues/Jazz | 22.03.2011 |
 | Ola Gjeilo - Piano Improvisations Klasyka | 26.06.2012 |
 | Ola Melander - Blue Marmalade Blues/Jazz | 31.05.2011 |
 | Olavi Trio - Triologia Blues/Jazz | 18.10.2011 |
 | Old 97's - The Grand Theatre, Vol. 2 Country | 05.07.2011 |
| Old Man Gloom - No Metal | 26.06.2012 |
 | Old Man Gloom - The Ape Of God Metal | 11.11.2014 |
 | Old Silver Key - Tales of Wanderings Metal | 27.09.2011 |
 | Oliver Huntemann - Paranoia Elektroniczna | 22.11.2011 |
| Oliver Koletzki - Echoes Elektroniczna | 02.08.2011 |
| Oliver Scheffner - Chill-Out Lounge Pop | 10.07.2012 |
| Oliver Schnyder - Haydn: Three Piano Concertos Klasyka | 19.06.2012 |
 | Ollabelle - Neon Blue Bird Folk/Ludowa | 16.08.2011 |