- Hymns, Syriac1
- Ibn Zaydūn, Aḥmad ibn ʻAbd Allāh, 1003 or 1004-1071. Risālah al-hazalīyah1
- Ibn al-Muṭahhar al-Ḥillī, al-Ḥasan ibn Yūsuf, 1250-1325. Tahdhīb al-wuṣūl ilá ʻilm al-uṣūl1
- Ibn al-Uqlīshī, Aḥmad ibn Maʻadd, -1155 or 11561
- Ibn Ḥabib, Jacob ben Solomon, 1445?-1515 or 15161
- Ibrāhīm ibn Adʹham, -approximately 7771
- Ijtihād (Islamic law)1
- Illumination of books and manuscripts, Arab1
- Illumination of books and manuscripts, Indic1
- Imams (Shiites)--Biography1
- Imprisonment1
- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām1
- Incantations, Hebrew1
- Indexes1
- India--Jammu and Kashmir1
- India--Mandi (District)1
- India--Mysore1
- India--Rampur (Uttar Pradesh)1
- India--Tirupati1
- Interest (Jewish law)1