- Manuscripts, Latin (Medieval and modern)18
- Manuscripts, Medieval10
- Manuscripts, Persian4
- Manuscripts, Renaissance2
- Manuscripts, Spanish1
- Manuscripts, Turkish22
- Marriage (Islamic law)2
- Massachusetts--Boston2
- Mathematics, Arab2
- Mawāqif fī ʻilm al-kalām (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Medicine1
- Medicine, Arab5
- Medicine, Greek and Roman1
- Metaphysics2
- Mevleviyeh2
- Miftāḥ al-ʻulūm (Sakkākī, Yūsuf ibn Abī Bakr)2
- Military history1
- Minhāj al-ṭālibīn (Nawawī)1
- Miniature books1
- Mirqāt al-wuṣūl (Hüsrev, Molla)1