Scribe
- Hādī ibn Bahāʼ al-Dīn1
- Ibn Muḥammad Jaʻfar Muḥammad Bāqir al-Sharīf al-Naṣīr al-Ṭūsī1
- Ibrāhīm Bahjat Ḥamīdī1
- Ibrāhīm Ibn al-Ḥusn1
- Ibrāhīm ibn Aḥmad Ḥanāshī1
- Ilyās ibn Khamzah ʻAlī Niyat ʻAlī ibn Khamzah1
- Isidore of Kyiv1
- Isidorus1
- Ismāʻīl ibn Ṣāliḥ1
- Jaʻfar ibn Muḥammad Iṣfahānī1
- Jeronimus de Sandei1
- Jibrāyil ibn Mikhāyil Ḥamawī1
- Johann Epping1
- Johannes Vischer1
- Johannes de Kuppferberg1
- Johannes de Novara1
- Johannes de Polna1
- Johannes van der Kemp1
- Johannes, de Beylario1
- Joseph ben Abraham Finzi1