Former Owner
- Matthew Simpson Parkhurst1
- Maurice Johnson1
- Menno Hertzberger1
- Mercantile Library Company1
- Meschatin La Faye family1
- Michaeliskonvent1
- Michel Chasles1
- Monastero di Santo Spirito in Verona1
- Moritz Dessauer1
- Morot1
- Mrs. E.J. Hooper1
- Museo Cavaleri1
- Muḥammad Dhará1
- Muḥammad Nāfiʻ, active 18581
- Muḥammad Riz̤ā1
- Muḥammad Ṣābir1
- Muṣṭafá Ṣidqī1
- Nanna Corbinello1
- Nicholai von Bodeck1
- Nicolas Antoine Labbey de Billy1