- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī2
- Khaṭīb al-Baghdādī, Abū Bakr Aḥmad ibn ʻAlī, 1002-1071. Asmāʼ al-mubhamah fī al-anbāʼ al-muḥkamah2
- Khūjahʹzādah, ʻAbd al-Naṣīr ibn ʻAbd Allāh, active 16th century. Taḥrīrāt ʻalá al-Ṭarīqah al-Muḥammadīyah2
- Kirātārjunīya (Bhāravi)2
- Knights of Malta2
- Knowledge, Theory of (Islam)2
- Kumayl ibn Ziyād, 633 or 634-7012
- Kumārasambhava (Kālidāsa)2
- Land tenure (Islamic law)2
- Land use--Law and legislation2
- Latin drama2
- Latin language, Medieval and modern2
- Latin language--Study and teaching2
- Latin letters, Medieval and modern2
- Latin literature, Medieval and modern2
- Laylat al-Qadr2
- Learning and scholarship2
- Lebanon2
- Legal documents (Islamic law)2
- Legal instruments2