- Khawwāṣ, Aḥmad ibn ʻAbbād, 1378?-1454. Kāfī fī ʻilmay al-ʻarūḍ wa-al-qawāfī1
- Khaṣṣāf, Aḥmad ibn ʻUmar, -874 or 875. Adab al-Qāḍī1
- Khiṭāʼī, ʻUthmān, active 15th century. Ḥāshiyah ʻalá al-Sharḥ al-mukhtaṣar6
- Kiddush1
- Kings and rulers15
- Kings and rulers--Genealogy1
- Kinship (Islamic law)1
- Kitāb (Sībawayh, ʻAmr ibn ʻUthmān)1
- Kurds1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)20
- Kāfiyajī, Muḥammad ibn Sulaymān, -1474. Sharḥ al-Iʻrāb ʻan qawāʻid al-iʻrāb1
- Kāfī (Kulaynī, Muḥammad ibn Yaʻqūb)6
- Kāfī fī al-ʻarūḍ wa-al-qawāfī (Tibrīzī, Yaḥyá ibn ʻAlī)1
- Lacquered bindings5
- Land tenure1
- Land tenure--Law and legislation1
- Land titles--Registration and transfer1
- Land value taxation1
- Landowners1
- Language and languages--Philosophy1