- Jewish philosophy3
- Jewish religious poetry, Judeo-Arabic3
- Jewish sermons, Hebrew3
- Jews--Medicine3
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Shamsīyah3
- Kanz al-wuṣūl ilá maʻrifat al-uṣūl (Bazdawī, ʻAlī ibn Muḥammad)3
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)3
- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī3
- Khiḍr (Legendary character)3
- Knowledge, Theory of (Islam)3
- Latin language3
- Laylat al-Qadr3
- Literary style3
- Magic squares3
- Mamelukes3
- Manuscripts, Avestan3
- Manuscripts, Catalan3
- Manuscripts, Digital3
- Manuscripts, Provençal3
- Maqamah3