- Kamāl al-Dīn al-Bakrī, Muḥammad ibn Muṣṭafá, 1730 or 1731-1781 or 1782. Fatḥ al-ilāh fī madḥ Rasūl Allāh1
- Karaite law1
- Karaites1
- Karaites--Liturgy1
- Kardarī, Ibn al-Bazzāz, -1424. Fatāwá al-Bazzāzīyah1
- Karo, Joseph ben Ephraim, 1488-15751
- Kashmir Śaivism1
- Kaydānī. Fiqh al-Kaydānī1
- Kaydānī. Risālah fī al-mashrūʻāt wa-ghayr al-mashrūʻāt1
- Kemalpaşazade, 1468 or 1469-1534. Risālah fī al-haykal al-insānī1
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1
- Kemalpaşazade, 1468 or 9-1534. Risālah fī al-haykal al-insānī1
- Keśavācārya Daivajña, active 16th century. Jātakapaddhati1
- Khabīṣī, ʻUbayd Allāh ibn Faḍl Allāh, -approximately 1640. Tahdhīb fī sharḥ al-Tahdhīb1
- Khadījah, -approximately 6191
- Khafrī, Muḥammad, -1407 or 1408. Ḥāshīyah ʻalá Sharḥ al-Qūshjī ʻalá al-Tajrīd1
- Khansāʼ, -approximately 645. Dīwān1
- Khaṭīb al-Tamartāshī, Muḥammad ibn ʻAbd Allāh, 1532 or 1533-1595 or 1596. Minaḥ al-ghaffār1
- Khilāṭī, Muḥammad ibn ʻAbbād, d. 1254. Talkhīṣ al-Jāmiʻ al-kabīr1
- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Sharḥ al-mukhtaṣar1