- Khvānsārī, Jamāl al-Dīn, -1713? Ḥāshīyah ʻalá Tajrīd al-ʻaqāʼid1
- Khwājahʹzādah, Muṣṭafá ibn Yūsuf, -1487 or 14881
- Khūjahʹzādah, ʻAbd al-Naṣīr ibn ʻAbd Allāh, active 16th century. Taḥrīrāt ʻalá al-Ṭarīqah al-Muḥammadīyah1
- Kinship (Islamic law)1
- Knowledge, Theory of (Islam)4
- Kumayl ibn Ziyād, 633 or 634-7011
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Kātī, Ḥusām al-Dīn al-Ḥasan, -1358 or 1359. Qāla aqūl1
- Lamaʻāt (ʻIrāqī, Fakhr al-Dīn Ibrāhīm)2
- Language and languages--Philosophy4
- Language and languages--Style1
- Leather doublures2
- Legacies (Islamic law)3
- Libraries2
- Liquor laws (Islamic law)2
- Logic52
- Logic, Medieval6
- Love1
- Love--Philosophy1
- Malikites5