Encyclopedias, Almanacs, Transcripts, and Maps
- Poor, Henry Varnum
- poor-man's-orchid
- Popayán
- Popes of the Roman Catholic Church ( (table))
- Popham, George
- Poplar Bluff
- Popović, Koča
- Popović, Milentije
- Poppaea Sabina
- population I and II
- Poratha
- Porbandar
- porbeagle
- Porcius Festus
- Porjus
- Porkkala
- pororoca
- Poroshenko, Petro Oleksiyovych
- Porrentruy
- Porres, Saint Martin de