Former Owner
- Mortimer Loeb Schiff1
- Morton Davis Mitchell1
- Morton Parker Eden1
- Morton Scott Enslin1
- Moses Shapira2
- Mount Zion Abbey1
- Moḍaka, Vināyaka1
- Mr. Hals1
- Mrs. E.J. Hooper1
- Mrs. F. W. Bartlett1
- Mrs. Turnbull1
- Muhammed Ali Khan Wallajah1
- Muhsinzâde Ömer Aǧa1
- Mullā ʻAbbās Zīvarī1
- Muriel Agnes Fry1
- Murray Anthony Potter1
- Musa Kâzım Efendi1
- Museo Cavaleri1
- Mushtaq Ali Khan I of Rampur1
- Muḥammad Amīn al-Sabtī al-Alūsī Anṣārī1