- Kumayl ibn Ziyād, 633 or 634-7011
- Kurds1
- Kādambarī (Bāṇa)1
- Kāfī al-mubtadiʼ min al-ṭullāb (Ibn Balabān, Muḥammad ibn Badr al-Dīn)1
- Kāfī fī al-ʻarūḍ wa-al-qawāfī (Tibrīzī, Yaḥyá ibn ʻAlī)1
- Kālī (Hindu deity)1
- Ladron de Guevara family1
- Lamberto, Jacopo di1
- Lamoignon de Basville, M. de (Nicolas), 1648-17241
- Lamucci, Corso1
- Lanaiolo, Gherardo1
- Land tenure (Islamic law)1
- Land use--Law and legislation1
- Land value taxation1
- Landowners1
- Lang, Matthäus, 1468-15401
- Language and languages1
- Laqānī, Muḥammad ibn Ḥasan, 1468 or 1469-1550. Ḥāshiyat Taṣrīf al-ʻIzzī1
- Laterino, Cristoforo1
- Laterino, Pietro1