| Phoebe | | FEE-bee (English) | English, Greek Mythology (Latinized), Biblical, Biblical Latin | |
| Phoenix | | FEE-niks | English (Modern) | |
| Phyliss | | FIL-is | English | |
| Phyllida | | FIL-i-də | English (Rare) | |
| Phyllis | | FIL-is (English) | Greek Mythology, English, German | |
| Pierce | | PEERS | English | |
| Piers | | PEERZ (English), PEERS (English) | English (British), Medieval French | |
| Piety | | PIE-ə-tee | English (Rare) | |
| Pip | | PIP | English | |
| Piper | | PIEP-ər | English (Modern) | |
| Pippa | | PIP-ə | English | |
| Placid | | PLA-sid | English (Rare) | |
| Pleasance | | PLEZ-ənts | English (Archaic) | |
| Pollie | | PAHL-ee | English | |
| Polly | | PAHL-ee | English | |