| Tatjana Owsijenko | PopPop genre | 23 |
| Oscar Feltsman | Soviet songPop genreSoundtrackPopRockClassicRomanceChristmas | 136 |
| Surganova & Orchestra | RockBalladBluesPop RockPop | 10 |
| Irina Ortman | Pop | 6 |
| Olga Losina | Pop | 1 |
| Olga Orlova | Pop | 6 |
| Georg Ots | Pop genreSoviet song | 10 |
| Organicheskaya Ledi | Electronic musicPop | 3 |
| Zhenya Otradnaya | PopRomance | 4 |
| Ocheretyanyy kit | PopFolk | 4 |
| Olenka | Pop | 3 |
| Simon Osiashvili | Pop genre | 1 |
