| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Olamilekan | - | Western African, Yoruba | ||
| Olanrewaju | - | Western African, Yoruba | ||
| Olav | - | Norwegian, Danish | ||
| Olavi | O-lah-vee (Finnish) | Finnish, Estonian | ||
| Olayinka | - | Western African, Yoruba | ||
| Ole | OL-e (Danish) | Danish, Norwegian | ||
| Oleg | ah-LYEK | Russian | ||
| Olegario | - | Spanish | ||
| Oleksander | - | Ukrainian | ||
| Oleksandr | - | Ukrainian | ||
| Oleksandra | - | Ukrainian | ||
| Oleksiy | - | Ukrainian | ||
| Olena | - | Ukrainian | ||
| Oles | - | Ukrainian | ||
| Olev | - | Estonian |