| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Petronilla | - | Italian, Late Roman | ||
| Petruccio | - | Medieval Italian | ||
| Pia | PEE-ah (Italian, Danish, German) | Italian, Swedish, Norwegian, Danish, German, Polish, Slovene, Late Roman | ||
| Pier | PYER (Italian), PEER (Dutch) | Italian, Dutch | ||
| Piera | PYE-rah | Italian | ||
| Pierina | pye-REE-nah | Italian | ||
| Pierino | pye-REE-no | Italian | ||
| Piero | PYE-ro | Italian | ||
| Pietra | PYE-trah | Italian | ||
| Pietrina | - | Italian | ||
| Pietro | PYE-tro | Italian | ||
| Pina | PEE-nah | Italian | ||
| Pino | PEE-no | Italian | ||
| Pio | - | Italian, Portuguese | ||
| Placida | - | Late Roman, Italian |