Encyclopedias, Almanacs, Transcripts, and Maps
- Petillius Cerialis
- Petrarch, Francesco
- Petrashevtsy
- Petronius Arbiter
- Petrov, Grigory Spiridonovich
- Petty Tutelage
- Petworth House
- Peyo
- Phan Thi Kim Phuc
- Philadelphia Campaign
- Philadelphia Plan
- Philanthropy and Foundations
- Philanthropy and Giving
- Philhellenic Movement
- Philip Melancthon
- Philip Morris
- Philippe de Vitry
- Philippe II D'Orléans
- Philippine Scouts and Constabulary
- Philippine-American War