Author
- Ibrāhīm Ibn ʻAbd al-Ṣamad1
- Ibrāhīm al-ʻĀmilī1
- Ibrāhīm ibn Muḥammad ḥarīthī1
- Ibrāhīm ibn Yaḥyá Ibn Ghannām1
- Ibrāhīm ibn ʻAlī Qalqashandī1
- Imbert Feutrier1
- Immanuel Bonfils1
- Immanuel Tremellius1
- Innocent I1
- Innocent III1
- Inquisition Sicily)1
- Ippolito Libri1
- Isaac Alfasi1
- Isaac the Blind1
- Isabella I of Castile1
- Ismāʻīl Ghāzānī1
- Ismāʻīl Jarrāḥī1
- Ismāʻīl ibn Abī Bakr Ibn al-Muqrī1
- Ismāʻīl ibn Aḥmad Ibn al-Athīr1
- Ismāʻīl ibn ʻAlī Ibn Muʻallá1