Author
- Hugh of Balma2
- Ibn 'Abd al-Barr2
- Ibn Abi al-Dunya2
- Ibn Battal2
- Ibn Jaber al-Andalusi2
- Ibn Kathir2
- Ibn Khaldun2
- Immanuel Frances2
- Isaac Alfasi2
- Isaac ben Mordekhai Kimḥi2
- Isaac of Troki2
- Ishmael ben Abraham Isaac ha-Kohen2
- Ismāʻīl ibn Abī Bakr Ibn al-Muqrī2
- Ismāʻīl ibn Ibrāhīm İsfendiyaroǧlu2
- Jagadīśatarkālaṅkāra2
- Jaghmini2
- Jayakr̥ṣṇa2
- Josef ibn Tabul2
- Joseph ben Gorion2
- Judah Leib Pukhovitser2