Former Owner
- Minnis, Katherine1
- Miriam Lutcher Stark6
- Mirmellus Arnandi1
- Miss Gostling1
- Mistrie, Sita Ram, Pandit1
- Mitchell Starrett Buck1
- Mobed Framji Fardunji Madan1
- Mobed Hormazdyar Mobed Khodabaksh1
- Mohammed bin Hamed bu Osman1
- Moissac Abbey1
- Molin1
- Monasterio de El Paular1
- Monasterium sanctorum quadraginta martyrum (Treviso Italy)1
- Monastero di Santo Spirito in Verona1
- Monastery at San Gregorio al Celio1
- Monastery of Benevívere1
- Monastery of Our Lady of the Angels of Churubusco1
- Monastery of Saint Peter (Erfurt, Germany)1
- Monastery of San Bartolmeo, Arezzo, Tuscany1
- Monica Franklyn1