- Knowledge, Theory of (Islam)1
- Lacquered bindings1
- Leather doublures1
- Loans (Islamic law)1
- Logic1
- Lumʻah al-Dimashqīyah (Shahīd al-Awwal, Muḥammad ibn Makkī)12
- Magic squares2
- Manners and customs2
- Manuscripts, Arabic214
- Manuscripts, Persian46
- Manuscripts, Turkish1
- Marriage (Islamic law)4
- Massachusetts--Williamstown1
- Mathematics, Arab3
- Medicine, Arab1
- Medicine, Persian3
- Menstruation--Religious aspects--Islam1
- Mukhtaṣar al-nāfiʻ (Muḥaqqiq al-Ḥillī, Jaʻfar ibn al-Ḥasan)6
- Muqniʻah (Mufīd, Muḥammad ibn Muḥammad)2
- Muslim pilgrims and pilgrimages4