Author
- Hibetullah bin İbrahim3
- Homer3
- Honorat Bovet3
- Hubert de Burgh, 1st Earl of Kent3
- Hugh Ripelin of Strasburg3
- Hugh of Saint-Cher3
- Ibn 'Abd al-Barr3
- Ibn Mufliḥ al-Maqdisī, Muḥammad, -13623
- Ibn Qudamah3
- Ibrāhīm ibn Mūsá Ṭarābulusī3
- Innocent IV3
- Isaac Newton3
- Ishmael ben Abraham Isaac ha-Kohen3
- Iskandar Beg Munshi3
- Ismāʻīl Ghāzānī3
- Isḥāq ibn Ḥasan Tūqādī3
- Ivo of Chartres3
- Jacob Anatoli3
- Jacques Legrand3
- Jalal Al-Din Al-Khabazi3