- Ibn Yūsuf al-Ṣafī, Muḥammad, 1421-14871
- Ibn al-Bārizī, Hibat Allāh ibn Najm al-Dīn, 1247-13381
- Ibn al-Jarādiqī, Muḥammad ibn ʻAlī, approximately 1373-14571
- Ibn al-Ṣābūnī, Muḥammad ibn ʻAlī, 1207 or 1208-1281 or 12821
- Ibn ʻUmrān, Muḥammad ibn Mūsá, 1392-14691
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Fatḥ al-mubīn li-sharḥ al-Arbaʻīn1
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Iʻlām bi-qawāṭiʻ al-Islām1
- Ijtihād (Islamic law)1
- Ikmāl (Ibn Mākūlā, ʻAlī ibn Hibat Allāh)1
- Islam--Rituals1
- Islamic education1
- Islamic law--Interpretation and construction1
- Islamic magic1
- Islamic philosophy1
- Islamic poetry, Arabic1
- Isnawī, ʻAbd al-Raḥīm ibn al-Ḥasan, 1305-13701
- Istiṣḥāb (Islamic law)1
- Jamʻ bayna al-ṣaḥīḥayn (Ḥumaydī, Muḥammad ibn Fattūḥ)1
- Judges (Islamic law)1
- Jāmiʻ al-Azhar1