Author
- Inayet Efendi1
- Innocent VIII1
- Insha Allah Khan1
- Isaac Lopez1
- Isaac Sasportas1
- Isaac ben Joseph of Corbeil1
- Isaac of Troki1
- Isaak Aaron Ettinger1
- Isaiah di Trani1
- Isidore of Seville1
- Iskandar Rūmī1
- Ismail bin Mohammad Rizi1
- Ismāʻīl Jarrāḥī1
- Ismāʻīl ibn Aḥmad Ibn al-Athīr1
- Ismāʻīl ibn Luṭf Allāh Bākharzī1
- Ismāʻīl ibn Muḥammad Māzandarānī1
- Ismāʻīl Ḥaqqī Āsikjīʹzādah1
- Issachar ben Mordecai ibn Susan1
- Izz al-Din ibn 'Abd al-Salam1
- Izzatullah Bengali1