- Marriage law2
- Martini, Cornelia2
- Martini, Roberto2
- Massachusetts--Wellesley2
- Mathematics2
- Medea, consort of Aegeus, King of Athens (Mythological character)2
- Medici, Giovanni de'2
- Middle East--Jerusalem2
- Middle East--Palestine2
- Missouri--Saint Louis2
- Mukhtaṣar al-Muntahá al-uṣūlī (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)2
- Mulakhkhaṣ fī al-hayʼah (Jaghmīnī, Maḥmūd ibn Muḥammad)2
- Music2
- Mutanabbī, Abū al-Ṭayyib Aḥmad ibn al-Ḥusayn, 915 or 916-9652
- Muṭawwal (Taftāzānī, Masʻūd ibn ʻUmar)2
- Mysticism--Judaism2
- Mysticism--Middle Ages2
- Netherlands2
- Nobility2
- North Macedonia--Skopje2