- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, -1345. Mughnī fī al-naḥw1
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, -1345. Mughnī fī ʻilm al-naḥw1
- Jārbardī, Fakhr al-Dīn Aḥmad ibn al-Ḥasan, d. 1345. Mughnī fī ʻilm al-naḥw1
- Kaffawī, Muḥammad ibn Ḥumayd, -1760 or 1761. Ādāb al-baḥth1
- Karmī, Marʻī ibn Yūsuf, -1623 or 16241
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Kaʻbah (Mecca, Saudi Arabia)1
- Kemalpaşazade, 1468 or 1469-15341
- Kemalpaşazade, 1468 or 1469-1534. Tafsīr al-Fātiḥah1
- Khabīṣī, Muḥammad ibn Abī Bakr, active 14th century. Muwashshaḥ1
- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Sharḥ al-mukhtaṣar1
- Kitāb (Sībawayh, ʻAmr ibn ʻUthmān)1
- Kāshī, Yaḥyá ibn Aḥmad. Qarah ḥāshiyah1
- Laqānī, Muḥammad ibn Ḥasan, 1468 or 1469-1550. Ḥāshiyat Taṣrīf al-ʻIzzī1
- Letter writing, Turkish1
- Liquor laws (Islamic law)1
- Lubāb al-iʻrāb al-māniʻ min al-laḥn fī al-sunnah wa-al-Kitāb (Shaʻrānī, ʻAbd al-Wahhāb ibn Aḥmad)1
- Lāmīyat al-jumal (Mijrādī, Muḥammad ibn Muḥammad)1
- Magic squares1
- Mahdi1