| Plamen | | - | Bulgarian, Serbian | |
| Plato | | PLAY-to (English) | Ancient Greek (Latinized) | |
| Platon | | - | Ancient Greek, Greek, Russian | |
| Pleasance | | PLEZ-ənts | English (Archaic) | |
| Plinio | | - | Italian, Spanish | |
| Plinius | | - | Ancient Roman | |
| Ploutarchos | | - | Ancient Greek | |
| Pluto | | PLOO-to (English) | Greek Mythology (Latinized), Roman Mythology | |
| Pocahontas | | - | History, Native American, Algonquin | |
| Poghos | | - | Armenian | |
| Pol | | - | Catalan | |
| Poldi | | - | German | |
| Polina | | pah-LEE-nah (Russian) | Russian, Ukrainian, Bulgarian | |
| Pollux | | PAHL-uks (English) | Roman Mythology | |
| Pollyanna | | pahl-ee-AN-ə (English) | Literature | |