- Jesuits3
- Jewish religious poetry, Judeo-Arabic3
- Jews--Legal status, laws, etc.3
- Jews--Medicine3
- Jews--Persecutions3
- 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
- Laments3
- Latin language--Grammar3
- Laylat al-Qadr3
- Letter writing3
- Literary style3
- Local officials and employees3
- Magic squares3
- Manuscripts, Aramaic3
- Manuscripts, Digital3
- Manuscripts, Dutch3