| Name | Meaning | Details |
|---|---|---|
| Olimpio | Mountain Of The Gods | View Details |
| Olujimi | God Gave Me This | View Details |
| Olympia | Mountain Of The Gods | View Details |
| Omana | Help | View Details |
| Onika | Who Is Greater Than God? | View Details |
| Ontibile | God Is Watching Over Me | View Details |
| Onyekachukwu | Who Is Greater Than God? | View Details |
| Opal | Precious Gem | View Details |
| Ophelia | Helper | View Details |
| Ophelie | Helper | View Details |
| Oren | Jerusalem Pine | View Details |
| Orlando | From Glorious Land | View Details |
| Osbert | God Bright | View Details |
| Osborn | God Bear | View Details |
| Osbourne | God Bear | View Details |