- Ibn al-Uqlīshī, Aḥmad ibn Maʻadd, -1155 or 11561
- Ibn al-ʻArabī, 1165-1240. Inshāʼ al-dawāʼir1
- Ibn al-ʻArabī, 1165-1240. Works1
- Ibn ʻAllān, Muḥammad ʻAlī ibn Muḥammad, 1588-1648. Fatḥ al-qarīb al-mujīb fī naẓm Khaṣāʼiṣ al-ḥabīb1
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Tahdhīb al-Tahdhīb.--Abridgment1
- Ibrāhīm ibn Adʹham, -approximately 7771
- Ijtihād (Islamic law)1
- Illumination of books and manuscripts, Arab1
- Illumination of books and manuscripts, Iranian1
- India--Agra1
- India--Delhi1
- India--Hyderabad1
- India--Mughal Empire1
- India--Surat1
- Intellect--Religious aspects--Islam1
- Interest (Islamic law)1
- Interfaith relations1
- Interpersonal relations--Religious aspects--Islam1
- Iran--Ardabīl1
- Iran--Dāmghān1