Author
- Ismail al-Isfahani1
- Ismail ibn Hammad al-Jawhari1
- Ismāʻīl Jarrāḥī1
- Ismāʻīl Qarah Kamāl1
- Ismāʻīl ibn Aḥmad Ibn al-Athīr1
- Ismāʻīl ibn Muḥammad Māzandarānī1
- Isḥāq ibn Ḥasan Tūqādī1
- Ivo of Chartres1
- Izz al-Din ibn Hibatullah ibn Abi l-Hadid1
- Jacob ben David ben Yom Tov1
- Jacob ben Hayyim Zemah1
- Jacob ibn Habib1
- Jacobus Dinetus1
- Jacopo Ragone1
- Jacopone da Todi1
- Jacques Legrand1
- Jacques Millet1
- Jagannatha Panditaraja1
- Jamāl al-Dīn Aḥmad ibn Muḥammad Ẓāhirī1
- Jarmakī, Abū Bakr ibn al-Ṭāhir, 18th cent1