- Penance7
- Penitentials1
- Penmanship4
- Perpetual calendars1
- Persecution1
- Persecution--Early church1
- Persius1
- Personal correspondence1
- Perush Rashi ʻal ha-Torah (Rashi)1
- Pesciori, Guglielmo1
- 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.2
- Pharmacognosy1
- Pharmacology1
- Pharmacy1
- Philip II, King of Macedonia, 382 B.C.-336 B.C.1
- Philip II, King of Spain, 1527-15982
- Philosophers, Ancient1