- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī2
- Khayālī, Aḥmad ibn Mūsá, -1457? Ḥāshiyah ʻalá sharḥ al-Taftāzānī2
- 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
- Khūjahʹzādah, ʻAbd al-Naṣīr ibn ʻAbd Allāh, active 16th century. Taḥrīrāt ʻalá al-Ṭarīqah al-Muḥammadīyah2
- Kirmāstī, Yūsuf ibn ḥusayn, d. 1500. Wajīz fī al-uṣūl2
- Kumayl ibn Ziyād, 633 or 634-7012
- Kāfī al-mubtadiʼ min al-ṭullāb (Ibn Balabān, Muḥammad ibn Badr al-Dīn)2
- Lamaʻāt (ʻIrāqī, Fakhr al-Dīn Ibrāhīm)2
- Legal documents2
- Legal forms2
- Letter writing, Persian2
- Letter writing, Turkish2
- Lexicography2
- Literature2
- Liturgics2
- Love2
- Magic tricks2
- Manuscripts, Hebrew2
- Manuscripts, Latin2