| Polydeukes | | - | Greek Mythology | |
| Polyhymnia | | - | Greek Mythology (Latinized) | |
| Polymnia | | - | Greek Mythology | |
| Polyxena | | - | Greek Mythology (Latinized) | |
| Polyxene | | - | Greek Mythology | |
| Poseidon | | pə-SIE-dən (English) | Greek Mythology | |
| Praxis | | - | Greek Mythology | |
| Priam | | PRIE-əm (English) | Greek Mythology (Anglicized) | |
| Priamos | | - | Greek Mythology | |
| Prometheus | | prə-MEE-thee-əs (English) | Greek Mythology | |
| Proteus | | - | Greek Mythology | |
| Psyche | | SIE-kee (English) | Greek Mythology | |
| Pyrrhos | | - | Greek Mythology, Ancient Greek | |
| Pyrrhus | | PIR-əs (English) | Greek Mythology (Latinized), Ancient Greek (Latinized) | |
| Pythios | | - | Greek Mythology | |