- Nīsābūrī, Niẓām al-Dīn al-Ḥasan ibn Muḥammad, -1328 or 1329. Risālah al-Shamsīyah1
- Nīsābūrī, Niẓām al-Dīn al-Ḥasan ibn Muḥammad, -1328 or 1329. Risālah al-Shamsīyah fī al-ḥisāb1
- Nūnīyah1
- Nūr Jahān, Empress, consort of Jahangir, Emperor of Hindustan, -16451
- Nūr al-Dīnʹzādah, Muṣṭafá ibn Aḥmad, -1573 or 1574. Risālat al-miʻrāj1
- Nūr al-īḍāḥ fī al-fiqh ʻalá madhhab al-Imām Abī Ḥanīfah (Shurunbulālī, Ḥasan ibn ʻAmmār)7
- Oaths (Islamic law)5
- Obligations (Law)1
- Obstetrics1
- Occultism2
- Ocean travel1
- Odyssey (Homer)1
- Olive oil1
- Omens1
- Omens--Religious aspects--Islam1
- Ontology4
- Opium2
- Oriental rites (Catholic Church)1
- Orthodox Eastern Church2
- Pakistan1