- Jews2
- Jighmīnī, Maḥmūd ibn Muḥammad, -1221? Mulakhkhaṣ fī al-hayʼah2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-14132
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Sharḥ Farāʼiḍ al-Sirājīyah2
- Jābir ibn Ḥayyān2
- Jārabardī, Aḥmad ibn al-ḥusayn, d. 1346. Sharḥ al-Shāfiyah2
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, d. 1345. Mughnī fī ʻilm al-naḥw2
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-ḥasan, d. 1345. Mughnī fī ʻilm al-naḥw2
- Khaṣṣāf, Aḥmad ibn ʻUmar, d. 874 or 5. Adab al-qāḍī2
- Khaṭīb al-Baghdādī, Abū Bakr Aḥmad ibn ʻAlī, 1002-1071. Asmāʼ al-mubhamah fī al-anbāʼ al-muḥkamah2
- Khiḍr (Legendary character)2
- Kings and rulers--Religious aspects2
- Kinship (Islamic law)2
- Knowledge, Theory of (Islam)2
- Kufic2
- Laylat al-Barāʼah2
- Laylat al-Qadr2
- Leather bindings2
- Letter writing, Arabic2
- Letter writing, Turkish2