| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Paschalis | - | Late Roman | ||
| Pastor | - | Spanish, Late Roman | ||
| Patricia | pə-TRISH-ə (English), pah-TREE-thyah (Spanish), pah-TREE-syah (Latin American Spanish), pah-TREE-tsee-ah (German) | English, Spanish, German, Late Roman | ||
| Patricius | - | Late Roman | ||
| Peregrinus | - | Late Roman | ||
| Perpetua | per-PE-twah (Spanish) | Spanish, Late Roman | ||
| Petronilla | - | Italian, Late Roman | ||
| Pia | PEE-ah (Italian, Danish, German) | Italian, Swedish, Norwegian, Danish, German, Polish, Slovene, Late Roman | ||
| Pius | PIE-əs (English) | Late Roman | ||
| Placida | - | Late Roman, Italian | ||
| Placidus | - | Late Roman | ||
| Primitiva | pree-mee-TEE-vah (Spanish) | Spanish, Late Roman | ||
| Primitivus | - | Late Roman | ||
| Primus | - | Late Roman | ||
| Prosperus | - | Late Roman |