- North, Edward North, Baron, 1496?-15641
- Notaries1
- Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar (Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī)1
- Numbers (Provenance)1
- Numerical division of sacred works1
- Oaths2
- Ordinances, Municipal1
- Oria, Johannes d'1
- Orta, Garcia de, active 16th century1
- Ortiz family1
- Ovando, Nicolás de, approximately 1460-15111
- Oviedo family1
- Oviedo, Francisco de, 1728-1
- Oviedo, Gregorio de, 1721-17961
- Oviedo, Nicolás de, 1725-1
- Pali literature3
- Panama--Panama1
- Papacy1
- Papal documents1
- Papal nuncios2