- Massacre of Dayr al Qamar (Dayr al Qamar, Lebanon : 1860)1
- Massaran, Isaac de1
- Massi, Francesca1
- Materia medica1
- Mathematicians, Arab1
- Mathematics, Arab10
- Mattei, Teo1
- Matteo, Bernardo di1
- Matteo, Giovanni di1
- Matthei, Bernardino1
- Matthias I, King of Hungary, 1443-14901
- Mawāqif fī ʻilm al-kalām (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Maydūmī, Muḥammad ibn Muḥammad, -13531
- Mayenne, Charles de Lorraine, Duc de, 1554-16111
- Mecco, Francesca di1
- Mecco, Xalento di1
- Medea, consort of Aegeus, King of Athens (Mythological character)1
- Medici, Alessandro de', 1510-15372
- Medici, Andrea de'2
- Medici, Bernardo de'2