Author
- Ibn Yūsuf, Yūsuf ibn Aḥmad, 14th cent1
- Ibn al-Farid1
- Ibn al-Kharrāṭ1
- Ibn al-Nafis1
- Ibn al-Salah1
- Ibn-al-ʿAṭṭār, ʿAlī Ibn-Ibrāhīm1
- Ibrāhīm ibn Muḥammad Aʻlam al-Baṭalyawsī1
- Imam Ar-Rafi'i1
- Innocent IV1
- Isaac Alfasi1
- Ismail al-Isfahani1
- Ismāʻīl ibn Aḥmad Ibn al-Athīr1
- Jacob Anatoli1
- Jacob HaLevi of Marvège1
- Jacobus de Burgo1
- Jacobus de Cessolis1
- Jacopo Piccolomini-Ammannati1
- Jacques Lempereur1
- Jaghmini1
- Jalal al-Din al-Qazwini1