Encyclopedias, Almanacs, Transcripts, and Maps
- Party Congresses and Conferences
- Party of Russian Unity and Accord
- Party Organization and Operations
- Pasha, Muhammad Ali
- Pasolini, Pier Paolo (1922–1975)
- Passaro, Cape, battle of
- Passarowitz, Peace of (1718)
- Passport System
- Pasternak, Boris (1890–1960)
- Pat Weaver
- PATCO Strike
- Patent Acts
- Patent Medicines
- Patents and Copyrights
- Patents and Inventions
- Pater, Walter
- Paterno, Joseph Vincent
- Paterson, James
- Paterson, John
- Patiño Y Morales, José (1666–1736)