- Iraq--Karbalāʼ1
- Ishārāt wa-al-tanbīhāt (Avicenna)1
- Islamic cosmology1
- Islamic etiquette1
- Islamic learning and scholarship1
- Islamic poetry1
- Isra' and Mi`raj of the Prophet Muhammad1
- Israel--Tsefat1
- Izmīrī, Muṣṭafá ibn Rajab, active 17th century1
- Jewish merchants1
- Judges (Islamic law)1
- Judgment Day (Islam)1
- Jāmiʻ al-Muẓaffarī (Damascus, Syria)1
- Jāmiʻ al-ṣaḥīḥ (Bukhārī, Muḥammad ibn Ismāʻīl)1
- Jāmiʻ al-ṣaḥīḥ (Muslim ibn al-Ḥajjāj al-Qushayrī)1
- Kanz al-wuṣūl ilá maʻrifat al-uṣūl (Bazdawī, ʻAlī ibn Muḥammad)1
- Kaʻbah (Mecca, Saudi Arabia)1
- Kemalpaşazade, 1468 or 1469-15341
- Kemalpaşazade, 1468 or 1469-1534. Iṣlāḥ wa-al-īḍāḥ1
- Khabbāzī, ʻUmar ibn Muḥammad, 1231 or 1232-1292. Mughnī fī uṣūl al-fiqh1