| Orabella | Woman | Italian Names |
| Oracion | Unisex | Spanish Names |
| Oracle | Unisex | Greek Names |
| Oraefo | Woman | African - Western region Names |
| Orah | Woman | Hebrew Names |
| Oral | Man | Latin Names |
| Oralee | Woman | American Names |
| Oralia | Unisex | American Names |
| Oran | Unisex | Irish Names |
| Orana | Woman | Aboriginal Names |
| Orane | Unisex | French Names |
| Oratilwe | Unisex | African Names |
| Orchid | Unisex | English Names |
| Orde | Man | English Names |
| Ordell | Unisex | English Names |
| Orea | Woman | Latin Names |
| Oregon | Unisex | Native American - Algonquin Names |
| Orella | Woman | Italian Names |
| Oren | Man | Hebrew Names |
| Orenda | Woman | Native American - Iroquois Names |