- Khansāʼ, -approximately 645. Dīwān1
- Khayālī, Aḥmad ibn Mūsá, -1457? Ḥāshiyah ʻalá sharḥ al-Taftāzānī1
- Khaṭīb al-Baghdādī, Abū Bakr Aḥmad ibn ʻAlī, 1002-1071. Asmāʼ al-mubhamah fī al-anbāʼ al-muḥkamah1
- Khaṭīb al-Tamartāshī, Muḥammad ibn ʻAbd Allāh, 1532 or 1533-1595 or 1596. Minaḥ al-ghaffār1
- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Mukhtaṣar1
- Kifāyat al-ḥuffāẓ (Ibn al-Hāʼim, Aḥmad ibn Muḥammad)1
- Kinship (Islamic law)1
- Kirmānī, Maḥmūd ibn Muḥammad, 1329?-1404 or 1405. Farāʼiḍ al-ījāz1
- Kisāʼī, ʻAlī ibn Ḥamzah, -804 or 8051
- Kitāb (Sībawayh, ʻAmr ibn ʻUthmān)1
- Kitāb fī al-fiqh al-Shāfiʻī1
- Kufic1
- Kufr (Islam)1
- Kumayl ibn Ziyād, 633 or 634-7011
- Kāfiyajī, Muḥammad ibn Sulaymān, -1474. Sharḥ al-Iʻrāb ʻan qawāʻid al-iʻrāb1
- 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
- Laughter--Religious aspects--Islam1
- Learning1
- Lebanon--Tripoli1