- Maḥzor. Passover1
- Maḥzor. Rosh ha-Shanah1
- Mechanics1
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medical astrology1
- Medici, Alamanno de'1
- Medici, Bernardo de'1
- Medici, Elisabetta de'1
- Medici, Fabrizio de'1
- Medici, Francesca de'1
- Medici, Giulio de'1
- Medici, Ottavia Altoviti1
- Medicine, Ancient1
- Medicine--Study and teaching1
- Meditation--Hinduism1
- Megilat Purim al Miṣriyin1
- Mehmed II, Sultan of the Turks, 1432-14811
- Meistersinger1
- Mekhilta of Rabbi Ishmael1
- Melanchthon, Philip, 1497-1560. De officio principum1