| Pauleen | A variant spelling of the name Pauline. |
| Paulene | A feminine form of the name Paul. |
| Paulla | A small or humble man |
| Paullina | A small or humble man |
| Peak | Derived from the Old English word 'pic,' meaning peak. |
| Peale | One who rings the bell |
| Peerless | Derived from the Old English words 'peer' and 'less,' meaning without equal. |
| Peersey | A name meaning a noble companion. |
| Peeta | Derived from the Sanskrit word 'pi,' meaning lord. |
| Pek | Derived from the Chinese word 'péi,' meaning peaceful. |
| Pellegrino | Derived from the Italian words 'pellegrino,' meaning pilgrim. |
| Pene | Weaver of cunning |
| Pennelope | Resembling a duck, in mythology, the faithful wife of odysseus |
| Pennington | Derived from the Old English words 'penning' and 'tun,' meaning enclosure and town. |
| Penry | Welsh form of Peter, meaning 'rock' or 'stone' |
| Peregrinus | Traveller, wanderer |
| Perin | Pear, pear tree |
| Perley | English surname derived from place name, meaning 'pear tree' |
| Pet | A diminutive form of the name Peter. |
| Peyden | A variant of the name Peyton |
| Phaedonas | Greek name meaning 'shining' or 'bright' |
| Phaedron | Greek name meaning 'shining' or 'bright' |
| Phaeton | Greek name meaning 'shining' or 'bright' |
| Pharrell | French name meaning 'traveler' or 'wanderer' |
| Pharris | English surname derived from place name, meaning 'fairy hill' |
| Phebea | A variant meaning bright and pure. |
| Phibes | English surname derived from place name, meaning 'lover of horses' |
| Phileas | Greek name meaning 'friend' or 'lover' |
| Philomen | Greek name meaning 'friend of strength' |
| Philon | Greek name meaning 'friend' or 'lover' |
| Phoebee | A bright, shining woman, in mythology |
| Phoenixx | A dark red color, in mythology, an immortal bird |
| Phrona | Self controlled |
| Pi Beseth | Abode of the goddess bahest or bast |
| Pie | A baked dish with a crust. |
| Pierluigi | Italian name meaning 'rocky hill' |
| Pilchard | English surname derived from place name, meaning 'fisherman' |
| Pirate | English surname derived from occupation, meaning 'sea robber' |
| Pisa | Italian city name, meaning 'place of juniper trees' |
| Piuta | A name of Native American origin. |