Author
- Ismāʻīl ibn Muḥammad al-ʻAjlūnī7
- Ismāʻīl ibn Sinān Sīwāsī1
- Ismāʻīl ibn ʻAlī Ibn Muʻallá1
- Ismāʻīl ibn ʻAlī ibn al-Ḥāʼik1
- Ismāʻīl Ḥaqqī Āsikjīʹzādah1
- Isobel Salcedo Larralde1
- Israel Alnaqua1
- Israel Sarug5
- Israel Yaakov Algazi1
- Issachar ben Mordecai ibn Susan1
- Istanbulī, Muṣṭafá Zakī1
- Isḥāq1
- Isḥāq ibn Ibrāhīm Fārābī1
- Isḥāq ibn Yūsuf Ṣardafī1
- Isḥāq ibn Ḥasan Tūqādī3
- Ivo of Chartres3
- Izz al-Din ibn 'Abd al-Salam1
- Izz al-Din ibn Hibatullah ibn Abi l-Hadid4
- Izzatullah Bengali1
- Ja'far Kashfi4