- Leo X, Pope, 1475-15212
- Letter writing, Arabic2
- Literature2
- Literature, Medieval2
- Lord's Supper--Catholic Church2
- Love poetry, Latin (Medieval and modern)2
- Magic2
- Manuscripts, Catalan2
- Manuscripts, Chagatai2
- Manuscripts, Greek2
- Manuscripts, Japanese2
- Manīnī, Aḥmad ibn ʻAlī, 1678 or 1679-1758 or 1759. Istinzāl al-naṣr bi-al-tawassul bi-ahl Badr2
- Marghīnānī, Maḥmūd ibn Aḥmad, 1156 or 1157-1219 or 1220. Muḥīṭ al-Burhānī fī al-fiqh al-Nuʻmānī.--Abridgment2
- Marriage--Religious aspects--Hinduism2
- Masnavis2
- Mass2
- Maḥallī, Jalāl al-Dīn Muḥammad ibn Aḥmad, 1389-1459. Kanz al-rāghibīn sharḥ Minhāj al-ṭālibīn2
- Medici, Alessandro de', 1510-15372
- Medici, Andrea de'2
- Medicine, Ancient2