- Ibn al-ʻImād al-Aqfahsī, Aḥmad, approximately 1349-1405. Manẓūmah fī al-najāsāt al-maʻfū ʻanhā1
- Ijtihād (Islamic law)1
- Illuminations (painting)1
- Imamate1
- Indexes1
- Inlays (decorative components)1
- Irshād al-adhhān ilá aḥkām al-īmān (Ibn al-Muṭahhar al-Ḥillī, al-Ḥasan ibn Yūsuf)1
- Isbījābī, Aḥmad ibn Manṣūr, -approximately 1087. Sharḥ al-Mukhtaṣar fī al-fiqh1
- Islam--Prayers and devotions1
- Islamic education1
- Islamic heresies1
- Islamic law--Sources1
- Islamic philosophy1
- Islamic poetry, Arabic1
- Islamic sermons, Arabic1
- Ismāʻīl ibn ʻAbd Allāh, 1792 or 1793-18631
- Jawharat al-tawḥīd (Laqānī, Ibrāhīm ibn Ibrāhīm)1
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Miṣbāḥ fī sharḥ al-Miftāḥ1
- Kaydānī. Maṭālib al-muṣallī1
- Khalwatīyah1