- Mathematics, Jewish1
- Maurice, Saint, -approximately 2871
- Maximian, Emperor of Rome, approximately 240-3101
- Maḥzor1
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Alamanno de'1
- Medici, Lorenzo de', 1449-14921
- Medicine--Manuscripts1
- Mediterranean Sea--Adriatic Sea1
- Memory1
- Menorah1
- Mercy1
- Metaphysics1
- Meteorologica (Aristotle)1
- Meteorology1
- Middle East--Jerusalem1
- Middle East--Palestine1
- Midrash Konen1
- Military art and science1
- Military history, Medieval1