| Sinead O'Connor | PopPop RockRockSoundtrack | 3 |
| Oesch's Die Dritten | Folk | 2 |
| Ovy on The Drums | Pop | 1 |
| Oliver Tree | Pop | 2 |
| Omega | Rock | 1 |
| OBOY | Rap/ Hip-Hop | 1 |
| Temple of the Dog | Rock | 1 |
| Orry Jackson | Pop | 1 |
| Oussama | R'n'B | 1 |
| Olupellar | Ethnische Musik | 1 |
| Joker Out | Indi-Musik | 1 |
| Adeleye Omotayo | Pop | 1 |
