- Ibn Saʻādah, Aḥmad ibn ʻAlī, active 13th century. Risālat al-ʻilm2
- Ibn Taymīyah, Aḥmad ibn ʻAbd al-Ḥalīm, 1263-13282
- Ibn Zaydūn, Aḥmad ibn ʻAbd Allāh, 1003 or 1004-1071. Risālah al-hazalīyah2
- Ibn al-Fāriḍ, ʻUmar ibn ʻAlī, 1181 or 1182-1235. Tāʼīyah2
- Ibn al-Hāʼim, Aḥmad ibn Muḥammad, -1412. Lumaʻ al-yasīrah fī ʻilm al-ḥisāb2
- Ibn al-Jazarī, Muḥammad ibn Muḥammad, 1350-1429. Arbaʻūn masʼalah min masāʼil muskhilah2
- Ibn al-Khayyāṭ, Abū Bakr ibn Muḥammad, -14082
- Ibn al-Muqrī, Ismāʻīl ibn Abī Bakr, 1354-1433 or 1434. Rawḍ al-ṭālib2
- Ibn al-Yāsamīn, ʻAbd Allāh ibn Ḥajjāj, d. 1204. Urjūzah2
- Ibn al-ʻArabī, 1165-1240. Manẓūmat Kashf al-Rān2
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Fatḥ al-mubīn li-sharḥ al-Arbaʻīn2
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Tahdhīb al-Tahdhīb.--Abridgment2
- Ibrāhīm, Pasha, 1789-18482
- Immortality--Islam2
- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām2
- Indexes2
- India--Hyderabad2
- Intellect--Religious aspects--Islam2
- Iran--Qazvīn2
- Iran--Shīrāz2