| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Olgica | - | Macedonian, Serbian | ||
| Oliver | AHL-ə-vər (English), AW-lee-ver (German), O-lee-ver (Finnish) | English, German, Swedish, Norwegian, Danish, Finnish, Estonian, Serbian, Croatian, Macedonian, Czech | ||
| Olivera | - | Serbian, Croatian, Macedonian | ||
| Olivie | o-lee-VEE (French) | French, Czech | ||
| Olivier | o-lee-VYE (French), O-lee-veer (Dutch) | French, Dutch | ||
| Olubunmi | - | Western African, Yoruba | ||
| Oluchi | - | Western African, Igbo | ||
| Olufemi | - | Western African, Yoruba | ||
| Olufunke | - | Western African, Yoruba | ||
| Olufunmilayo | o-loo-foo-mee-LIE-o | Western African, Yoruba | ||
| Olufunmilola | - | Western African, Yoruba | ||
| Olujimi | - | Western African, Yoruba | ||
| Olukayode | - | Western African, Yoruba | ||
| Olumide | - | Western African, Yoruba | ||
| Oluwafemi | - | Western African, Yoruba |