- Islamic ethics1
- Islamic rosary1
- Islamic sects1
- Isnawī, ʻAbd al-Raḥīm ibn al-Ḥasan, 1305-13701
- Italy--Naples1
- Italy--Padua1
- Italy--Vicenza1
- Jerome, Saint, -419 or 4201
- Judges (Islamic law)1
- Justa, Saint, -approximately 2871
- Jāmiʻ al-ṣaḥīḥ (Bukhārī, Muḥammad ibn Ismāʻīl)1
- Kalbī, Diḥyah ibn Khalīfah, -approximately 6701
- Karmī, Marʻī ibn Yūsuf, -1623 or 16241
- Kashshāf (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Kemalpaşazade, 1468 or 1469-1534. Risālah fī al-haykal al-insānī1
- Khamrīyah (Ibn al-Fāriḍ, ʻUmar ibn ʻAlī)1
- Khiḍr (Legendary character)1
- Laylat al-Qadr1
- Leather doublures1
- Leocadia, Saint, -3031