| Porsche | Unisex | German Names |
| Porter | Unisex | English Names |
| Portia | Woman | Latin Names |
| Portillo | Unisex | Spanish Names |
| Portunus | Man | Latin Names |
| Posala | Woman | Native American - Miwok Names |
| Poseanye | Unisex | Native American - Tewa Names |
| Poseidon | Man | Greek - Greek Mythology Names |
| Posh | Unisex | English Names |
| Posy | Woman | English Names |
| Potter | Man | English Names |
| Pouria | Man | Persian Names |
| Povitamun | Unisex | Native American - Tewa Names |
| Poviyemo | Unisex | Native American - Tewa Names |
| Powa | Man | Native American Names |
| Powasheek | Unisex | Native American - Sac and Fox Nation Names |
| Powell | Man | Welsh Names |
| Powers | Unisex | English Names |
| Pradeep | Man | Indian Names |
| Pradnya | Woman | Indian - Sanskrit Names |