- Ibn Sharaf Shāh, Ḥasan ibn Muḥammad, 1247 or 1248-1315 or 1316. Wāfiyah fī sharḥ al-Kāfiyah2
- Ibn al-Sarrāj, Aḥmad ibn Abī Bakr, active 14th century1
- Ibn al-ʻArabī, 1165-12401
- Ibn al-ʻArabī, 1165-1240. Works1
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Nuzhat al-naẓar fī tawḍīḥ Nukhbat al-fikar1
- Illegible markings1
- Illumination of books and manuscripts1
- Illumination of books and manuscripts, Turkish2
- Illustrated works3
- Imamate1
- Imams (Shiites)1
- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām1
- India1
- Inheritance and succession1
- Inheritance and succession (Islamic law)9
- Insertions (Provenance)1
- Intellect--Religious aspects--Islam1
- Interest (Islamic law)2
- International relations1
- Iran4