Author
- Ilyās ibn ʻAbbās Mullā Shaykh al-Kurdī1
- Imami Heravi1
- Inayat Khan1
- Inayet Efendi1
- Insha Allah Khan1
- Ismail bin Mohammad Rizi1
- Ismāʻīl Jarrāḥī1
- Ismāʻīl Qarah Kamāl1
- Ismāʻīl ibn Aḥmad Ibn al-Athīr1
- Ismāʻīl ibn Luṭf Allāh Bākharzī1
- Ismāʻīl ibn Muḥammad Māzandarānī1
- Ismāʻīl Ḥaqqī Āsikjīʹzādah1
- Izz al-Din ibn 'Abd al-Salam1
- Izz al-Din ibn Hibatullah ibn Abi l-Hadid1
- Izzatullah Bengali1
- Jaafar Al-Sadiq1
- Jahangir Mirza Qajar1
- Jai Singh II1
- Jakob Eduard Polak1
- Jalal al-Din Mohammad Tabrizi1