| Name | Meaning | Details |
|---|---|---|
| Olympia | Mountain Of The Gods | 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 |
| 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 |
| Osgood | God Goth | View Details |
| Osiris | God Of The Dead | View Details |
| Osmond | God Protector | View Details |
| Osric | God Ruler | View Details |
| Ossie | Diminutive Form Of Names Beginning With Os | View Details |