Former Owner
- Manookjee Sorabjee Ashburner1
- Mantell1
- Manuel Fernández del Castillo3
- Manuel John Johnson1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Manṣūr, Abū al-Faz̤l ibn Ghiyāth al-Dīn1
- Marc-René de Voyer d'Argenson1
- Marcantonio Contarini1
- Marcantonio V Borghese1
- Marcel Mirgodin1
- Marcela Gabriela1
- Marchese Linterno2
- Marchese Porri-Carcani1
- Marcianus F. Rossi1
- Marco Antonio Morosini1
- Marco da Bologna1
- Marcus Jastrow16
- Margaret Anna Hazard1
- Margaret Barclay Wilson2
- Margaret F. Woodward1