- Kanz al-daqāʼiq (Nasafī, ʻAbd Allāh ibn Aḥmad)5
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)6
- Khabbāzī, ʻUmar ibn Muḥammad, 1231 or 2-1292. Mughnī fī uṣūl al-fiqh1
- Khaṭīb al-Baghdādī, Abū Bakr Aḥmad ibn ʻAlī, 1002-1071. Asmāʼ al-mubhamah fī al-anbāʼ al-muḥkamah2
- Khilāṭī, Muḥammad ibn ʻAbbād, -1254. Talkhīṣ al-Jāmiʻ al-kabīr1
- Khujandī, ʻAlī, d. ca. 1427. Quṣārá fī al-taṣrīf1
- Kings and rulers8
- Kings and rulers--Duties2
- Kitāb fī al-fiqh al-Shāfiʻī1
- Kloster Medingen1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)9
- Lamberto, Jacopo di1
- Lanaiolo, Gherardo1
- Land grants1
- Land tenure3
- Land tenure--Law and legislation1
- Land titles1
- Land titles--Registration and transfer1
- Laterino, Cristoforo1
- Laterino, Pietro1