- Khilāṭī, Muḥammad ibn ʻAbbād, d. 1254. Talkhīṣ al-Jāmiʻ al-kabīr1
- Khiḍr (Legendary character)1
- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Sharḥ al-mukhtaṣar1
- Kinot1
- Kirmānī, Maḥmūd ibn Muḥammad, 1329?-1404 or 1405. Farāʼiḍ al-ījāz1
- Kufic1
- Kāfī al-mubtadiʼ min al-ṭullāb (Ibn Balabān, Muḥammad ibn Badr al-Dīn)1
- Kāshī, Jamshīd ibn Masʻūd, -approximately 1436. Sullam al-samāʼ1
- Ladino language1
- Ladino literature1
- Lafões, Pedro Henrique de Bragança, Duque de, 1718-17611
- Lamaʻāt (ʻIrāqī, Fakhr al-Dīn Ibrāhīm)1
- Land tenure1
- Land value taxation1
- Language and languages--Etymology1
- Law1
- Laylat al-Qadr1
- Legal documents (Islamic law)1
- Legal forms1
- Legal petitions1