Author
- Nikolaus Gerbel1
- Nisibis Elias Abū-Ḥalīm III.1
- Nizam al-Din al-Nisaburi1
- Oliver Maillard1
- Order of the Garter1
- Order of the Immaculate Conception1
- Oronce Finé1
- Ottavio Strada1
- Ottmar Luscinius1
- Otto di guardia e balia (Florence, Tuscany)1
- Paramahaṃsa Parivrājaka1
- Parthasarathi Mishra1
- Paul IV1
- Paulus Fabricius1
- Paulus Melissus1
- Pedro Barrantes Maldonado1
- Pedro Juan Núñez1
- Pedro Luis de Borja Lanzol de Romaní1
- Pedro Mexía1
- Pedro Pizarro1