- Kaʻb al-Aḥbār, -655 or 6561
- Kemalpaşazade, 1468 or 1469-1534. Risālah fī al-haykal al-insānī1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)3
- Khiḍr (Legendary character)1
- Kings and rulers--Religious aspects1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Kūrānī, Ibrāhīm ibn Ḥasan, 1616 or 1617-approximately 1690. Maslak al-taʻrīf1
- Legacies (Islamic law)1
- Logic2
- Mahdi1
- Manuscripts, Arabic30
- Manuscripts, Persian2
- Manuscripts, Turkish5
- Mas̲navī (Jalāl al-Dīn Rūmī, Maulana)1
- Mathematics, Arab1
- Miscellanea2
- Music theory1
- Music--Religious aspects--Islam1
- Muslim pilgrims and pilgrimages1
- Muslim saints3