- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, -1345. Mughnī fī ʻilm al-naḥw1
- Khabbāzī, ʻUmar ibn Muḥammad, 1231 or 1232-1292. Mughnī fī uṣūl al-fiqh1
- Khabbāzī, ʻUmar ibn Muḥammad, 1231 or 2-1292. Mughnī fī uṣūl al-fiqh1
- Khilāṭī, Muḥammad ibn ʻAbbād, -1254. Talkhīṣ al-Jāmiʻ al-kabīr1
- Khujandī, ʻAlī, d. ca. 1427. Quṣārá fī al-taṣrīf1
- Kitāb fī al-fiqh al-Shāfiʻī1
- Kumayl ibn Ziyād, 633 or 634-7011
- Kāshī, Yaḥyá ibn Aḥmad. Qarah ḥāshiyah1
- Latin language--Grammar1
- Law1
- Liturgics1
- Love1
- Love poetry, Arabic1
- Love poetry, English (Middle)1
- Lunar eclipses1
- Mabādiʼ fī al-taṣrīf (Zanjānī, ʻAbd al-Wahhāb ibn Ibrāhīm)1
- Mahdi1
- Mamelukes1
- Manuscripts, French1
- Manuscripts, Hebrew1