- Judgment of God1
- Justinian I, Emperor of the East, 483?-5651
- Jāmiʻ al-Azhar1
- Jāmiʻ al-uṣūl li-aḥādīth al-Rasūl (Ibn al-Athīr, Majd al-Dīn al-Mubārak ibn Muḥammad)1
- Jāmiʻ al-ṣaḥīḥ (Bukhārī, Muḥammad ibn Ismāʻīl)6
- Jāmiʻ al-ṣaḥīḥ (Muslim ibn al-Ḥajjāj al-Qushayrī)11
- Kalīlah wa-Dimnah1
- Kansas--Lawrence32
- Kanz al-wuṣūl ilá maʻrifat al-uṣūl (Bazdawī, ʻAlī ibn Muḥammad)5
- Karaite manuscripts1
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)2
- Khabbāzī, ʻUmar ibn Muḥammad, 1231 or 2-1292. Mughnī fī uṣūl al-fiqh1
- Kings and rulers3
- Kings and rulers--Duties1
- Kings and rulers--Genealogy2
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)2
- Lamucci, Corso1
- Lancelot (Legendary character)2
- Land tenure8
- Land titles2