- Kardarī, Ibn al-Bazzāz, -1424. Fatāwá al-Bazzāzīyah1
- Kaydānī. Fiqh al-Kaydānī1
- Kaydānī. Maṭālib al-muṣallī1
- Kāshgharī, Sadīd al-Dīn, active 13th century? Munyat al-muṣallī wa-ghunyat al-mubtadiʼ1
- Khalwatīyah1
- Khaṭīb al-Tamartāshī, Muḥammad ibn ʻAbd Allāh, 1532 or 1533-1595 or 1596. Minaḥ al-ghaffār1
- Khilāṭī, Muḥammad ibn ʻAbbād, -1254. Talkhīṣ al-Jāmiʻ al-kabīr1
- Khilāṭī, Muḥammad ibn ʻAbbād, d. 1254. Talkhīṣ al-Jāmiʻ al-kabīr1
- Khiḍr (Legendary character)1
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)1
- Khūjahʹzādah, ʻAbd al-Naṣīr ibn ʻAbd Allāh, active 16th century. Taḥrīrāt ʻalá al-Ṭarīqah al-Muḥammadīyah1
- Kings and rulers--Religious aspects1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Land tenure (Islamic law)1
- Land tenure--Law and legislation1
- Land use--Law and legislation1
- Laughter--Religious aspects--Islam1
- Laylat al-Qadr1
- Lebanon--Tripoli1
- Lexicology1