- Manuscripts, Latin (Medieval and modern)1
- Manuscripts, Medieval1
- Manuscripts, Portuguese1
- Maqdisī, Muḥammad ibn Aḥmad, -1501 or 15021
- Mary, Blessed Virgin, Saint1
- Mary, of Bethany, Saint1
- Massachusetts--Boston1
- Mathematics, Arab1
- Maydūmī, Muḥammad ibn Muḥammad, -13531
- Medicine, Arab1
- Middle East--Jerusalem1
- Miracles1
- Miracles (Islam)1
- Miscellanea1
- Monasteries1
- Moon1
- Munfarijah (Ibn al-Naḥwī, Yūsuf ibn Muḥammad)1
- Murad IV, Sultan of the Turks, 1612-16401
- Music--Religious aspects--Islam1
- Musical instruments--Religious aspects--Islam1