- Karaite manuscripts3
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)1
- Kirmānī, Maḥmūd ibn Muḥammad, 1329?-1404 or 1405. Farāʼiḍ al-ījāz1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)2
- Language and languages--Philosophy1
- Logic6
- Manuscripts, Arabic54
- Manuscripts, Hebrew3
- Manuscripts, Persian2
- Manuscripts, Turkish5
- Manẓūmah al-Bayqūnīyah (Bayqūnī, Ṭāhā ibn Muḥammad)2
- Maqṣūrah (Ibn Durayd, Muḥammad ibn al-Ḥasan)1
- Martyrdom--Islam1
- Mathematics1
- Mathematics, Arab1
- Mawāqif fī ʻilm al-kalām (Ījī, ʻAḍud al-Dīn ʻAbd al-Raḥmān ibn Aḥmad)1
- Miscellanea1
- Mulakhkhaṣ fī al-hayʼah (Jaghmīnī, Maḥmūd ibn Muḥammad)1
- Munfarijah (Ibn al-Naḥwī, Yūsuf ibn Muḥammad)1