- Kalbī, Diḥyah ibn Khalīfah, -approximately 6701
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Kaʻbah (Mecca, Saudi Arabia)1
- Kemalpaşazade, 1468 or 1469-15341
- Kemalpaşazade, 1468 or 1469-1534. Iṣlāḥ wa-al-īḍāḥ1
- Kemalpaşazade, 1468 or 1469-1534. Risālah fī al-haykal al-insānī1
- Kemalpaşazade, 1468 or 1469-1534. Īḍāḥ al-iṣlāḥ1
- Khadījah, -approximately 6191
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)3
- Khiḍr (Legendary character)4
- Khwājahʹzādah, Muṣṭafá ibn Yūsuf, -1487 or 14881
- Kings and rulers1
- Kings and rulers--Religious aspects2
- Kinship (Islamic law)2
- Knowledge, Theory of (Islam)2
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)2
- Lacquered bindings1
- Language and languages--Philosophy1
- Language and languages--Style1
- Laylat al-Barāʼah1