| Olga Bride |
2 |
| Oli.P |
2 |
| Olisha |
19 |
| Olisha & Саня |
2 |
| Oliver Koletzki |
2 |
| Oliver Koletzki feat. Fran |
3 |
| Oliver Tree |
11 |
| Olivia Holt |
3 |
| Olivia Lufkin |
2 |
| Olivia Rodrigo |
19 |
| Ollane |
5 |
| Ollane feat. Miyagi |
2 |
| Olven |
4 |
| Om Shanti Om |
3 |
| Omar Anoke |
2 |
| Omega |
3 |
| Omega Lithium |
2 |
| Omerta |
4 |
| Omnia |
7 |
| OnLine Pro |
2 |
| Once Upon A December |
2 |
| One Beats |
3 |
| One Direction |
6 |
| One Less Reason |
3 |
| One OK Rock |
9 |
| One OK Rock feat. Avril Lavigne |
2 |
| One Ok Rock |
2 |
| One Piece |
3 |
| One Pleasant Moment |
3 |
| One Republic |
17 |
| One Two |
2 |
| One piece |
2 |
| OneRepublic |
8 |
| OneState |
3 |
| Onelight |
27 |
| Onelight feat allokey |
3 |
| Onilow |
2 |
| Onlap |
2 |
| Onlife |
48 |
| Onlife & TURUS |
2 |
| Online |
2 |
| Only Hits January 2010 |
2 |
| Onny |
4 |
| Onyx |
3 |
| Oomph! |
8 |
| Oonagh |
3 |
| Open Kids |
45 |
| Open Kids ft. NEBO5 |
2 |
| Opening |
2 |
| Opera D'arte |
2 |