Author
- Nārada1
- Nārāyaṇa Goḍabole1
- Nārāyaṇa Samudrika1
- Nārāyaṇapaṇḍita1
- Nārāyaṇāśrama1
- Nīqūlā Ṣāʼigh1
- Nūr al-Ḥaqq ibn ʻAbd al-Ḥaqq Dihlavī1
- Oddo di Biagio1
- Odo of Meung1
- Oliver Maillard1
- Order of Saint Michael1
- Order of the Immaculate Conception1
- Orderic Vitalis1
- Orosius1
- Osbern of Gloucester1
- Osman Süruri1
- Oswald Corda1
- Ottmar Luscinius1
- Otto Ege1
- Pakudha Kaccayana1