Author
- Ibn Yamin1
- Ibrāhīm ibn Manṣūr Nīsābūrī1
- Idris Bitlisi1
- Ikhtiyār al-Dīn ibn Ghiyāth al-Dīn1
- Imami Heravi1
- Inayat Khan1
- Insha Allah Khan1
- Ismail bin Mohammad Rizi1
- Ismail ibn Hammad al-Jawhari1
- Ismāʻīl ibn Luṭf Allāh Bākharzī1
- Isḥāq1
- Izzatullah Bengali1
- Jaghmini1
- Jai Singh II1
- Jakob Eduard Polak1
- Jalal al-Din Mohammad Tabrizi1
- Jamālī Ardistani1
- Jaʻfar Vāʻiẓ1
- Jaʻfar ibn al-Ḥusayn Shūshtarī1
- Jean Manesca1