- Jārūdī, Nāṣir ibn Muḥammad, active 18th century1
- Kalbī, Diḥyah ibn Khalīfah, -approximately 6701
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Kaydānī. Maṭālib al-muṣallī1
- Kaʻbah (Mecca, Saudi Arabia)1
- Kemalpaşazade, 1468 or 1469-15341
- Khalwatīyah1
- Khilāṭī, Muḥammad ibn ʻAbbād, -1254. Talkhīṣ al-Jāmiʻ al-kabīr1
- Khiḍr (Legendary character)1
- Kāfī al-mubtadiʼ min al-ṭullāb (Ibn Balabān, Muḥammad ibn Badr al-Dīn)1
- Lacquered bindings1
- Laylat al-Qadr1
- Learning1
- Leather doublures1
- Legal ethics1
- Loans (Islamic law)1
- Lāmīyat al-ʻArab (Shanfará)1
- Mahdi1
- Manuscripts, Tashelhit1
- Maqṣūrah (Ibn Durayd, Muḥammad ibn al-Ḥasan)1