- Mysticism--Christianity1
- Mythology, Greek1
- Names in the Bible1
- Nauphle-le-Château (France)1
- Navigation1
- Nazarius, Saint, -681
- Neuland, Walter, active 14501
- Newfoundland and Labrador1
- Nicholas, of Dinkelsbühl, approximately 1360-14331
- Noah (Biblical figure)1
- North America--New France1
- Nouel, Jacques, 1551-1
- Nuns1
- Occultism--Religious aspects1
- Occultism--Religious aspects--Islam1
- Octavia, Empress, consort of Nero, Emperor of Rome, approximately 42-621
- Octoechos (Orthodox Eastern Church)1
- Odilo, Saint, Abbot of Cluny, 962-1048 or 10491
- Odo, Saint, Abbot of Cluny, approximately 879-9421
- Oedipus (Greek mythological figure)1