- Liquor laws (Islamic law)4
- Lord's Supper4
- Mamelukes4
- Manichaeism4
- Manuscripts, Japanese4
- Manuscripts, Nahuatl4
- Manuscripts, Provençal4
- Manuscripts, Samaritan4
- Manāzil al-sāʼirīn (Anṣārī al-Harawī, ʻAbd Allāh ibn Muḥammad)4
- Mardāwī, ʻAlī ibn Sulaymān, 1414 or 1415-1480 or 1481. Tanqīḥ al-mushbiʻ fī taḥrīr aḥkām al-Muqniʻ4
- Martyrdom--Islam4
- Mary Magdalene, Saint4
- Materia medica, Vegetable4
- Maḥzor. High Holidays4
- Maḥzor. Yom Kippur4
- Medici, Carlo de'4
- Medici, Vincenzo de'4
- Medicine, Greek and Roman4
- Medicine--Manuscripts4
- Mediterranean Region4