Author
- Ibn an-Nahhas al-Halabi2
- Ibn ʿAqīl2
- Ikhtiyār al-Dīn ibn Ghiyāth al-Dīn2
- Immanuel Frances2
- Innocent III2
- Isaac Alfasi2
- Isaac ben Mordekhai Kimḥi2
- Isaac of Troki2
- Ishmael ben Abraham Isaac ha-Kohen2
- Ismāʻīl ibn Ibrāhīm İsfendiyaroǧlu2
- Jacob ben Asher2
- Jacopone da Todi2
- Jakob Reifmann2
- Jamāl al-Dīn Khvānsārī2
- Jaʻfar Astarābādī2
- Jaʻfar ibn Khaḍir Janājī2
- John Chrysostom2
- Jordan von Quedlinburg2
- Josef ibn Tabul2
- Joseph ben Gorion2