- Italian (culture or style)1
- Judas Iscariot1
- Judges (Islamic law)1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá al-Muṭawwal1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥ̣āshiyah ʻalá Lawāmiʻ al-asrār1
- Jāmiʻ al-ṣaghīr (Suyūṭī)1
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, -1345. Mughnī fī al-naḥw1
- Kabāʼir (Muḥammad ibn ʻAbd al-Wahhāb)1
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Kaydānī. Maṭālib al-muṣallī1
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1
- Khabīṣī, Muḥammad ibn Abī Bakr, active 14th century. Muwashshaḥ1
- Khadījah, -approximately 6191
- Khalwatīyah1
- Khansāʼ, -approximately 645. Dīwān1
- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī1
- Khiḍr (Legendary character)1
- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Mukhtaṣar1
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)1
- Kirmānī, Maḥmūd ibn Muḥammad, 1329?-1404 or 1405. Farāʼiḍ al-ījāz1