| Olaug | - | Norse Name | Olba | - | Aborigin Name |
| Oleander | - | Muslim Name | Oleksandra | - | Ukrainian Name |
| Oleksandra-Petrova | - | Ukrainian Name | Olena | - | Ukrainian Name |
| Olena-Leonidivna | - | Ukrainian Name | Olencia | - | American Name |
| Olenka | - | Ukrainian Name | Olenna | - | Assyrian Name |
| Olessandra | - | Ukrainian Name | Olesya | - | Russian Name |
| Olesya | - | Ukrainian Name | Olevia | - | Latin Name |
| Olga | - | Romanian Name | Olha | - | Ukrainian Name |
| Olha-Oleksiivna | - | Ukrainian Name | Olia | - | Assyrian Name |
| Olian | - | Muslim Name | Oliana | - | Hawaiian Name |
| Olimpia | - | Romanian Name | Olimpiya | - | Ukrainian Name |
| Olin | - | Indonesian Name | Olina | - | Hawaiian Name |
| Olinda | - | Indonesian Name | Olirel | - | Cyprien Name |
| Oliva | - | Latin Name | Olivan | - | Cyprien Name |
| Olive | - | English Name | Olivea | - | Latin Name |
| Olivette | - | Philippines Name | Olivia | - | Romanian Name |
| Olívia | - | Portuguese Name | Olivia | - | Philippines Name |
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