Encyclopedias, Almanacs, Transcripts, and Maps
- Patristic Philosophy
- Patrocínio, José do (1853–1905)
- Patrón Costas, Robustiano (1878–1953)
- Patronato Real
- Pátzcuaro, Lake
- Pauler, Akos (1876–1933)
- Pauling, Linus (1901–1994)
- Paulistas, Paulistanos
- Paulsen, Friedrich (1846–1908)
- Pauserna
- Pavlov, Ivan Petrovich (1849–1936)
- Pavón Aycinena, Manuel Francisco (1798–1855)
- Pavón, Battle of
- Payador
- Payaguá Indians
- Paycheck, Johnny
- Payno y Flores, Manuel (1810–1894)
- Paysandú
- Paz Baraona, Miguel (1863–1937)
- Paz del Río