- History, Ancient1
- History, Military1
- History--Philosophy1
- Horses1
- Ibn Saʻādah, Aḥmad ibn ʻAlī, active 13th century. Risālat al-ʻilm1
- Ibn Zaydūn, Aḥmad ibn ʻAbd Allāh, 1003 or 4-1071. Risālah al-jiddīyah1
- Ibn al-Fāriḍ, ʻUmar ibn ʻAlī, 1181 or 1182-1235. Tāʾīyah1
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjaz fī al-ṭibb1
- Ibn al-Uqlīshī, Aḥmad ibn Maʻadd, -1155 or 11563
- Ibn al-ʻArabī, 1165-12401
- Ijtihād (Islamic law)1
- Imams (Shiites)--Biography1
- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām1
- India10
- India--Delhi1
- India--Hyderabad1
- India--Jammu and Kashmir1
- Inheritance and succession (Islamic law)1
- Intellectual life5
- Iran15