Author
- Ismāʻīl ibn ʻAlī ibn al-Ḥāʼik1
- Israel Alnaqua1
- Israel Yaakov Algazi1
- Istanbulī, Muṣṭafá Zakī1
- Isḥāq ibn Ibrāhīm Fārābī1
- Isḥāq ibn Yūsuf Ṣardafī1
- Ivo of Chartres1
- Jabartī, Ḥasan ibn Ibrāhīm, 1698 or 1699-1774?1
- Jacob Berab1
- Jacob Israel Karmi1
- Jacob Meyer1
- Jacob ben David ben Yom Tov1
- Jacob ben Jacob, ha-Kohen, -approximately 12701
- Jacob ben Reuben ibn Zur1
- Jacob ibn Habib1
- Jacopone da Todi1
- Jacques Millet1
- Jalal al-Din Mohammad Tabrizi1
- James of Viterbo1
- Jamshīd al-Kāshī1