- Marshals1
- Martino, Odino S., active 15th century1
- Martinus, Polonus, -12791
- Mary Magdalene, Saint1
- Mary, Blessed Virgin, Saint, in the liturgy--Orthodox Eastern Church1
- Mary, of Bethany, Saint1
- Mashāriq al-anwār (Ṣaghānī, al-Ḥasan ibn Muḥammad)1
- Masnavis, Persian1
- Mass (Music)1
- Mas̲navī (Jalāl al-Dīn Rūmī, Maulana)1
- Materia medica1
- Materia medica, Vegetable1
- Maxims1
- Mayenne, Charles de Lorraine, Duc de, 1554-16111
- Maḥzor. High Holidays1
- Meat inspection (Jewish law)1
- Medical formularies1
- Medici, Alessandro de', 1510-15371
- Medici, House of1
- Medici, Lorenzo de', 1449-14921