- Ibn al-Shahīd al-Thānī, al-Ḥasan, 1551or 2-1602 or 3. Maʻālim al-dīn wa-malādhdh al-mujtahidīn1
- Ibn al-Shihnah, Abū al-Walīd Muḥammad ibn Muḥammad, 1348-1412. Manẓūmah fī al-farāʼiḍ1
- Ibn al-Uqlīshī, Aḥmad ibn Maʻadd, -1155 or 11561
- Ibn Ḥabib, Jacob ben Solomon, 1445?-1515 or 15161
- Ibn ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 15666. Iʻlām li-qawāṭiʻ al-Islām1
- Ijtihād (Islamic law)1
- Illumination of books and manuscripts, Arab1
- Imams (Shiites)--Biography1
- Imprisonment1
- Incantations, Hebrew1
- Indexes1
- India--Carnatic1
- India--Mandi (District)1
- India--Mysore1
- India--Rampur (Uttar Pradesh)1
- India--Tirupati1
- Indians of Mexico--Land tenure1
- Interest (Islamic law)1
- Interest (Jewish law)1
- International relations1