- Manuscripts, Aramaic1
- Manuscripts, Assamese1
- Manuscripts, Burmese1
- Manuscripts, Galician1
- Manuscripts, Ladino1
- Manuscripts, Malayalam1
- Manuscripts, Sanskrit1
- Manuscripts, Thai1
- Margarita, de Austria, Queen, consort of Philip III, King of Spain, 1584-16111
- Martyrdom1
- Martyrs1
- Mary, Blessed Virgin, Saint1
- Masnavis, Persian1
- Mathematical instruments1
- Medicine, Magic, mystic, and spagiric1
- Medina Sidonia, Alonso Pérez de Guzmán, duque de, 1550-16191
- Medina Sidonia, Juan Alonso de Guzmán, Duque de, -15581
- Memorial books (Holocaust)1
- Menasheh ben Asher, a.b.d. ḳ. Ropshits1
- Menorah1