- Maḥzor1
- Maṣābīḥ al-sunnah (Baghawī, al-Ḥusayn ibn Masʻūd)1
- Mecco, Francesca di1
- Mecco, Xalento di1
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medical astrology1
- Medici, Alamanno de'1
- Medici, Bernardo de'1
- Medici, Giovenco de'1
- Medici, Giuliano de'1
- Medici, Niccolò de'1
- Medici, Vanne de'1
- Medicinal plants1
- Medicine, Greek and Roman1
- Medicine, Greek and Roman--Manuscripts1
- Medicine, Persian1
- Mehmed II, Sultan of the Turks, 1432-14811
- Mekhilta of Rabbi Ishmael1
- Mellini, Piero1
- Memory1