- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Lawāmiʻ al-asrār3
- Kanz al-wuṣūl ilá maʻrifat al-uṣūl (Bazdawī, ʻAlī ibn Muḥammad)3
- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī3
- Kings and rulers--Genealogy3
- Knowledge, Theory of3
- Kāshī, Yaḥyá ibn Aḥmad. Qarah ḥāshiyah3
- Ladino language3
- Lamaʻāt (ʻIrāqī, Fakhr al-Dīn Ibrāhīm)3
- Land use--Law and legislation3
- Language and languages--Style3
- Latin literature--Study and teaching3
- Lawyers3
- Laylat al-Qadr3
- Lectionaries3
- Legacies (Islamic law)3
- Legal forms3
- Lettering3
- Love poetry, Arabic3
- Magic3
- Manuscripts, Avestan3