- Kings and rulers29
- Kings and rulers--Duties3
- Kings and rulers--Religious aspects2
- Kinship (Islamic law)2
- Kirmānī, Maḥmūd ibn Muḥammad, 1329?-1404 or 1405. Farāʼiḍ al-ījāz1
- Kisāʼī, ʻAlī ibn Ḥamzah, -804 or 8051
- Kitāb (Sībawayh, ʻAmr ibn ʻUthmān)3
- Knowledge, Theory of (Islam)2
- Korea3
- Kumayl ibn Ziyād, 633 or 634-7011
- Kurds1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)104
- Kāfiyajī, Muḥammad ibn Sulaymān, -1474. Sharḥ al-Iʻrāb ʻan qawāʻid al-iʻrāb1
- Kāfī (Kulaynī, Muḥammad ibn Yaʻqūb)15
- Kāfī fī al-ʻarūḍ wa-al-qawāfī (Tibrīzī, Yaḥyá ibn ʻAlī)1
- Kāshī, Yaḥyá ibn Aḥmad. Qarah ḥāshiyah1
- Kūrānī, Ṭānā ibn Aḥmad, d. 1884? Naẓm Mukhtaṣar al-Manār1
- Lacquered bindings15
- Lamaʻāt (ʻIrāqī, Fakhr al-Dīn Ibrāhīm)1
- Land tenure4