- Khiḍr (Legendary character)1
- Khuzāʻī, Diʻbil ibn ʻAlī, 765 or 766-860 or 861. Qaṣīdah1
- Khādimī, Muḥammad ibn Muṣṭafá, 1701 or 2-1762 or 3. Majāmiʻ al-ḥaqāʼiq wa-al-qawāʻid wa-jawāmiʻ al-raqāʼiq wa-al-fawāʼid1
- Khādimī, Muḥammad ibn Muṣṭafá, 1701 or 2-1762 or 3. Risālah fī ajzāʼ al-qaḍīyah1
- Kings and rulers1
- Kings and rulers--Duties1
- Kisāʼī, ʻAlī ibn Ḥamzah, -804 or 8051
- Kumayl ibn Ziyād, 633 or 634-7011
- Kāshī, Jamshīd ibn Masʻūd, -approximately 1436. Miftāḥ al-ḥussāb1
- Kūrānī, Ṭānā ibn Aḥmad, d. 1884? Naẓm Mukhtaṣar al-Manār1
- Lacquered bindings1
- Lamaʻāt (ʻIrāqī, Fakhr al-Dīn Ibrāhīm)1
- Legal ethics1
- Letter writing, Arabic1
- Letter writing, Persian1
- Letter writing, Turkish1
- Liquor laws (Islamic law)1
- Lunar eclipses1
- Lāmīyah (Zaqqāq, ʻAlī ibn Qāsim)1
- Lāmīyat al-afʻāl (Ibn Mālik, Muḥammad ibn ʻAbd Allāh)1