| Name | Meaning | Details |
|---|---|---|
| Ogden | From The Oak Valley | View Details |
| Oihane | From The Forest | View Details |
| Olenna | Created Name | View Details |
| Olinda | Combination Name | View Details |
| Olive | Olive Or From The Olive Tree | View Details |
| Oluina | From The Family Of My Mother | View Details |
| Orah | From Ora. | View Details |
| Oralia | Created Name | View Details |
| Orlando | From Glorious Land | View Details |
| Orozco | From Orozco | View Details |
| Ortega | From Ortega | View Details |
| Osinachi | Created Name | View Details |
| Osma | Created Name | View Details |
| Ossie | Diminutive Form Of Names Beginning With Os | View Details |
| Overton | From The Riverbank Town | View Details |
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