| Okonski | 0 | 0 |
| Oksana Hretchyn | 0 | 0 |
| Oksana Sowiak | 0 | 0 |
| Ol Kainry | 0 | 0 |
| Ola B. Johannessen | 1 | 0 |
| Ola Bergman | 0 | 0 |
| Ola Englund | 0 | 0 |
| Ola Hanson | 0 | 0 |
| Ola Kvernberg | 0 | 0 |
| Ola Rudner | 9 | 0 |
| Olaf Apholz | 0 | 0 |
| Olaf Bär | 16 | 0 |
| Olaf C. Christiansen | 0 | 0 |
| Olaf Haye | 1 | 0 |
| Olaf Henzold | 3 | 0 |
| Olaf Koch | 0 | 0 |
| Olaf Laneri | 0 | 0 |
| Olaf Maninger | 0 | 0 |
| Olaf Rupp | 0 | 0 |
| Olafur Mowa | 0 | 0 |
| Olalla Alemàn | 3 | 0 |
| Olari Elts | 15 | 0 |
| Olaus Petri Vocalis | 0 | 0 |
| Olav Anton Thommessen | 0 | 0 |
| Olavi Louhivuori | 0 | 0 |
| Old King Cole Younger | 0 | 0 |
| Old Merry Tale Jazzband | 0 | 0 |
| Old Mervs | 0 | 0 |
| Old Nick | 0 | 0 |
| Old Royal Naval College Trinity Laban Chapel Choir | 0 | 0 |
| Old Ruins | 0 | 0 |
| Old School Junkies | 0 | 0 |
| Old St. Mary's Choir | 0 | 0 |
| Old Time Gospel Hour Choir | 1 | 0 |
| Old Tower | 0 | 0 |
| Old and New Dreams | 0 | 0 |
| Oldblood | 0 | 0 |
| Older Brother | 0 | 0 |
| Oldschool Dubtechno .Producer | 0 | 0 |
| Oldust | 0 | 0 |
| Oldřich Flosman | 1 | 0 |
| Oldřich František Korte | 2 | 0 |
| Oldřich Vlček | 6 | 0 |
| Ole Bull | 5 | 0 |
| Ole Bøhn | 0 | 0 |
| Ole Edvard Antonsen | 10 | 0 |
| Ole Eirik Ree | 0 | 0 |
| Ole Jacob Hansen | 0 | 0 |
| Ole Jørgensen | 0 | 0 |
| Ole Kiilerich | 0 | 0 |
| Ole Kock Hansen | 0 | 0 |
| Ole Kristian Ruud | 29 | 0 |
| Ole Mathisen | 0 | 0 |
| Ole Morten Vågan | 0 | 0 |
| Ole Olsen | 0 | 0 |
| Ole Paus | 0 | 0 |
| Ole Schmidt | 13 | 0 |
| Oleg Bezborodko | 0 | 0 |
| Oleg Butman | 0 | 0 |
| Oleg Caetani | 16 | 0 |
| Oleg Kaskiv | 0 | 0 |
| Oleg Kondratenko | 1 | 0 |
| Oleg Maisenberg | 11 | 0 |
| Oleg Pissarenko | 0 | 0 |
| Oleg Prokofiev | 1 | 0 |
| Oleg Shebeta-Dragan | 0 | 0 |
| Oleg Tsibulko | 1 | 0 |
| Oleksandr Pushniak | 0 | 0 |
| Olena Havyuk-Sheremet | 0 | 0 |
| Olena Kushpler | 0 | 0 |
| Olena Tokar | 1 | 0 |
| Olesya Golovneva | 1 | 0 |
| Olev Oja | 0 | 0 |
| Olga Andryushchenko | 0 | 0 |
| Olga Bezsmertna | 0 | 0 |
| Olga Cafiero | 0 | 0 |
| Olga Dudnik | 1 | 0 |
| Olga Guillot | 0 | 0 |
| Olga Kalugina | 0 | 0 |
| Olga Kern | 6 | 0 |
| Olga Kiun | 0 | 0 |
| Olga Konkova | 0 | 0 |
| Olga Kopylova | 0 | 0 |
| Olga Lutsiv-Ternovskaya | 0 | 0 |
| Olga Martynova | 0 | 0 |
| Olga Mykytenko | 0 | 0 |
| Olga Neuwirth | 12 | 0 |
| Olga Pasichnyk | 10 | 0 |
| Olga Peretyatko | 8 | 0 |
| Olga Polyakova | 0 | 0 |
| Olga Prats | 0 | 0 |
| Olga Scheps | 0 | 0 |
| Olga Svobodová | 0 | 0 |
| Olga Szönyi | 1 | 0 |
| Olga Trífonova | 1 | 0 |
| Olga Tverskaya | 0 | 0 |
| Olga Vinokur | 3 | 0 |
| Olga Voronova | 0 | 0 |
| Olga Vyguzova | 0 | 0 |
| Olga Watts | 0 | 0 |