| Phrixos | | - | Greek Mythology | |
| Phrixus | | - | Greek Mythology (Latinized) | |
| Phyllis | | FIL-is (English) | Greek Mythology, English, German | |
| Pistis | | - | Greek Mythology | |
| Plouton | | - | Greek Mythology | |
| Pluto | | PLOO-to (English) | Greek Mythology (Latinized), Roman Mythology | |
| Pollux | | PAHL-uks (English) | Roman Mythology | |
| Polydeukes | | - | Greek Mythology | |
| Polyhymnia | | - | Greek Mythology (Latinized) | |
| Polymnia | | - | Greek Mythology | |
| Polyxena | | - | Greek Mythology (Latinized) | |
| Polyxene | | - | Greek Mythology | |
| Pomona | | - | Roman Mythology | |
| Poseidon | | pə-SIE-dən (English) | Greek Mythology | |
| Praxis | | - | Greek Mythology | |