- Ibn Ṭūlūn, Shams al-Dīn Muḥammad ibn ʻAlī, 1475-15461
- Ijmāʻ (Islamic law)1
- Ikmāl (Ibn Mākūlā, ʻAlī ibn Hibat Allāh)1
- Ildephonsus, Saint, approximately 610-6671
- Illumination of books and manuscripts, French1
- Illumination of books and manuscripts, Iranian1
- Illumination of books and manuscripts--Technique1
- Illusion (Philosophy)1
- Ilāhʹābādī, ʻAbd Allāh ibn Shihāb. Sharḥ ʻalá ḍābiṭat sharāʼiṭ al-ashkāl al-arbaʻah li-Tahdhīb al-manṭiq1
- Impediments to marriage1
- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām1
- India--Allahabad1
- India--Bharūch (District)1
- India--Cochin1
- India--Kamrup (District)1
- India--Mughal Empire1
- Indian cartography1
- Indians of Mexico--Land tenure1
- Inheritance and succession (Jewish law)1
- Inheritance and succession (Samaritan law)1