- Penance (Canon law)1
- Penmanship manuals1
- Pentecost1
- Persius1
- Personal correspondence1
- Phaedra (Greek mythological character)1
- Phalaris, Tyrant of Agrigentum, active 6th century B.C.1
- Phlebotomy1
- Physical appearance of Jesus Christ1
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- Piccinino, Nicolo, -14441
- Piccolomini, Ambrogio Nese1
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- Piccolomini, Nerius Gabrielli de1
- Piccolomini, Nerochio1