| Baby Name | Meaning | Gender |
|---|
| Odelette | Little Spring | Female |
| Oki | Middle Of The Ocean | Female |
| Okoth | Ugandan Name Meaning "Born During The Rains." | Male |
| Onida | The One Searched For | Female |
| Ora | "Money." | Female |
| Orabel | Beautiful Seacoast | Female |
| Orabelle | Beautiful Seacoast | Female |
| Orahamm | From Tbe Riverbank Enclosure | Male |
| Oram | From The Riverbank Enclosure | Male |
| Orham | From Tbe Riverbank Enclosure | Male |
| Orman | Spearman | Male |
| Orran | The Name Of An English River. | Male |
| Orren | The Name Of An English River. | Male |
| Orrin | The Name Of An English River. | Male |
| Orton | From The Shore Farm | Male |
| Osiris | Myth Name (God Of The Dead) | Male |
| Oxford | From The Ox Ford | Male |
| Oya | Miwok Name.Meaning Unknown | Male |
| Pachua | Hopi Name Meaning " Feathered Water Snake." PACO | Male |
| Palaemon | Myth Name (A Sea God) | Male |
| Pamuy | Water Moon (Hopi) | Female |
| Pamuya | Hopi Name Meaning " Water Moon." PAPINA | Female |
| Pasha | Born At Easter | Female |
| Pavati | Clear Water (Hopi) | Female |
| Pegasus | Myth Name (Winged Horse) | Male |