| Oleg Romanenko | Pop | 1 |
| The Otto Sieben Orchestra | InstrumentalmusikPop | 1 |
| Olga Tezelashvili | EstradaJazz | 1 |
| Oleg Kvasha | Pop | 1 |
| Sons of Legion | PopPop RockRockCountry-Musik | 5 |
| Joan Osborne | PopRockPop Rock | 2 |
| Andrey Obidin | InstrumentalmusikPop | 1 |
| Olson | PopRap/ Hip-Hop | 1 |
| Kelly Osbourne | Rock | 1 |
| Oskar med k | Elektronische Musik | 1 |
| Böhse Onkelz | RockHardrock | 1 |
| Space One | PopRap/ Hip-Hop | 1 |
