- Kalbī, Diḥyah ibn Khalīfah, -approximately 6701
- Kamāl al-Dīn Muḥammad ibn Muḥammad, d. 1418. Naẓm Nukhbat al-fikar fī muṣṭalaḥ ahl al-athar1
- Kamāl al-Dīn al-Bakrī, Muḥammad ibn Muṣṭafá, 1730 or 1731-1781 or 1782. Fatḥ al-ilāh fī madḥ Rasūl Allāh1
- Kanz al-daqāʼiq (Nasafī, ʻAbd Allāh ibn Aḥmad)3
- Karaite calendar4
- Karaite law1
- Karaite manuscripts7
- Karaites1
- Karaites--Liturgy1
- Kardarī, Ibn al-Bazzāz, -1424. Fatāwá al-Bazzāzīyah1
- Karma8
- Karo, Joseph ben Ephraim, 1488-15751
- Kashmir Śaivism1
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)2
- Kavvanot (Cabala)8
- 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