- Khalwatīyah1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)1
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)1
- Khwājahʹzādah, Muṣṭafá ibn Yūsuf, -1487 or 14881
- Kings and rulers--Duties1
- Kings and rulers--Genealogy1
- Knowledge, Theory of (Islam)1
- Kātī, Ḥusām al-Dīn al-Ḥasan, -1358 or 1359. Qāla aqūl1
- Languages, Secret1
- Lebanon--Tripoli1
- Legal documents1
- Legal documents (Islamic law)1
- Liquor laws (Islamic law)1
- Love poetry, Arabic1
- Lumʻah al-Dimashqīyah (Shahīd al-Awwal, Muḥammad ibn Makkī)1
- Magic squares1
- Mahdi1
- Majnūn Laylá1
- Mamelukes1
- Manuscripts, Chagatai1