Author
- Ibn Qayyim Al-Jawziy2
- Ibn al-Mulaqqin2
- Imam Birgivi2
- Isaac Luria2
- Ismail ibn Hammad al-Jawhari2
- Jacob Anatoli2
- Jacopo Piccolomini-Ammannati2
- Jamāl al-Dīn Khvānsārī2
- Jamāl al-Dīn Ḥaṣīrī2
- Jayāditya2
- Jaʻfar ibn Khaḍir Janājī2
- Joan Martines2
- John Cassian2
- John de Beauchesne2
- Jordan von Quedlinburg2
- Joseph ben Ephraim Karo2
- Juana I of Castile2
- Judah ben Saul ibn Tibbon2
- Julianus Pomerius2
- Julius II2