Author
- Imām al-Dīn ibn Luṭf Allāh Lāhūrī1
- Inayat Khan1
- Inayet Efendi1
- Innocent III1
- Isaac Aboab1
- Isaac Israeli ben Joseph1
- Isaac Lopez1
- Isaac Sasportas1
- Isaac the Blind1
- Isaak ben Meïr from Düren1
- Isidore of Seville1
- Ismail bin Mohammad Rizi1
- Ismāʻīl Jarrāḥī1
- Ismāʻīl Qarah Kamāl1
- Ismāʻīl ibn Aḥmad Ibn al-Athīr1
- Ismāʻīl ibn Muḥammad al-ʻAjlūnī1
- Israel Alnaqua1
- Israel Yaakov Algazi1
- Issachar ben Mordecai ibn Susan1
- Izz al-Din ibn Hibatullah ibn Abi l-Hadid1