- New moon--Religious aspects--Judaism1
- Niccola, Contro di1
- Niccolò, Michele di1
- Nicholas V, Pope, 1397-14551
- Nicomachean ethics (Aristotle)1
- Nineteenth century30
- Ninth century2
- Nobility1
- Notaries3
- Novi, Lisa di1
- Numbers (Provenance)1
- Nuti, Giovanni, 1952-1
- Octavia, Empress, consort of Nero, Emperor of Rome, approximately 42-621
- Oedipus (Greek mythological figure)1
- Oratory1
- Orto, Giovanni dall'1
- Ospedale degli Innocenti (Florence, Italy)1
- Ospedale di San Bartolomeo (Florence, Italy)2
- Otto I, Holy Roman Emperor, 912-9731
- Paffiere, Arcangelo1