- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Sharḥ al-mukhtaṣar1
- Khuzāʻī, Diʻbil ibn ʻAlī, 765 or 766-860 or 861. Qaṣīdah1
- Khwājahʹzādah, Muṣṭafá ibn Yūsuf, -1487 or 14881
- Khādimī, Muḥammad ibn Muṣṭafá, 1701 or 1702-1762 or 1763. Risālah fī ajzāʼ al-qaḍīyah1
- Khānaqāh-i Niʻmat Allāhī1
- Kings and rulers--Conduct of life1
- Kings and rulers--Religious aspects--Islam1
- Kirmānī, Maḥmūd ibn Muḥammad, 1329?-1404 or 1405. Farāʼiḍ al-ījāz1
- Kisāʼī, ʻAlī ibn Ḥamzah, -804 or 8051
- Kitāb (Sībawayh, ʻAmr ibn ʻUthmān)1
- Kufr (Islam)1
- Kumayl ibn Ziyād, 633 or 634-7011
- Kurds1
- Kāfī al-mubtadiʼ min al-ṭullāb (Ibn Balabān, Muḥammad ibn Badr al-Dīn)1
- Kāfī fī al-ʻarūḍ wa-al-qawāfī (Tibrīzī, Yaḥyá ibn ʻAlī)1
- Kātī, Ḥusām al-Dīn al-Ḥasan, -1358 or 1359. Qāla aqūl1
- Kūrānī, Ibrāhīm ibn Ḥasan, 1616 or 1617-approximately 16901
- Kūrānī, Ibrāhīm ibn Ḥasan, 1616 or 1617-approximately 1690. Maslak al-jalī fī ḥukm shaṭḥ al-walī1
- Kūrānī, Ibrāhīm ibn Ḥasan, 1616 or 1617-approximately 1690. Maslak al-taʻrīf1
- Languages, Secret1