Author
- Ibn Habal1
- Ibn Hajar al-Haytami1
- Ibn Majah1
- Ibn al-Haytham1
- Ibn ʻAbd al-Riḍá1
- Ibrāhīm Shabistarī1
- Ibrāhīm ibn Hibat Allāh Lakhmī1
- Ibrāhīm ibn Muḥammad Ṣafāqisī1
- Ibrāhīm ibn Mūsá Ṭarābulusī1
- Ibrāhīm ibn ʻAlī Ṭaraṣūṣī1
- Ikhtiyār al-Dīn ibn Ghiyāth al-Dīn1
- Imad al-Din Mahmud ibn Mas‘ud Shirazi1
- Isaac Luria1
- Isaac Newton1
- Isfarāyīnī, Muḥammad ibn Muḥammad, d. 13461
- Ishmael ben Abraham Isaac ha-Kohen1
- Isḥāq1
- Isḥāq ibn Yūsuf Ṣardafī1
- Jacob Berab1
- Jacob ben Jacob, ha-Kohen, -approximately 12701