- Persius1
- Perush Rashi ʻal ha-Torah (Rashi)1
- Peter Lombard, Bishop of Paris, approximately 1100-11601
- Peter, the Apostle, Saint1
- Petrarca, Francesco, 1304-13741
- Phalaris, Tyrant of Agrigentum, active 6th century B.C.1
- Pharmacognosy1
- Pharmacology1
- Pharmacy1
- Philip II, King of Macedonia, 382 B.C.-336 B.C.1
- Philosophers, Ancient1
- Philosophers, Ancient--Biography1
- Philosophy and religion1
- Philosophy, Ancient1
- Philosophy, Medieval, in literature1
- Physical appearance of Jesus Christ1
- Physics (Aristotle)1
- Pigments1
- Pigskin bindings1
- Pilgrims and pilgrimages1