| Proteus | | - | Greek Mythology | |
| Psyche | | SIE-kee (English) | Greek Mythology | |
| Ptolemaios | | - | Ancient Greek | |
| Ptolemais | | - | Ancient Greek | |
| Pyrrhos | | - | Greek Mythology, Ancient Greek | |
| Pyrrhus | | PIR-əs (English) | Greek Mythology (Latinized), Ancient Greek (Latinized) | |
| Pythagoras | | pi-THAG-ər-əs (English) | Ancient Greek | |
| Pythios | | - | Greek Mythology | |
| Rachel | | RAY-chəl (English), ra-SHEL (French), RAH-khəl (Dutch) | English, Hebrew, French, German, Dutch, Biblical, Biblical Latin, Biblical Greek, Biblical Hebrew | |
| Raphael | | ra-fa-EL (French), RAF-ee-el (English), RAY-fee-əl (English) | German, French, English, Biblical, Biblical Latin, Biblical Greek | |
| Rebekka | | re-BE-kah (German), RE-bek-kah (Finnish) | German, Dutch, Danish, Norwegian, Icelandic, Faroese, Finnish, Biblical Greek | |
| Rhea | | REE-ə (English) | Greek Mythology (Latinized), Roman Mythology | |
| Rheia | | - | Greek Mythology | |
| Rhode | | - | Ancient Greek, Biblical Greek, Biblical Latin | |
| Rouben | | - | Biblical Greek, Armenian | |