Former Owner
- Madeleine Cosman1
- Madyājñika Devakṛṣṇa1
- Mahadevabhaṭṭa5
- Maheśa1
- Mahārāja Aditya Bahadur Dinha8
- Malachia Ormanian1
- Malvezzi de' Medici1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Mario Maffei1
- Mark Lansburgh1
- Markus Fugger1
- Marvin-L. Colker1
- Mary Augusta Strachey1
- Mary Schell Collins1
- Marāṭha, Raṅganātha1
- Matteo Luigi Canonici3
- Mauni, Bālaṃbhaṭa1
- Maximilian Henry of Bavaria1
- Mayer Sulzberger5
- Mazliah Finzi1