Author
- Henry Suso1
- Henry of Langenstein1
- Hibetullah bin İbrahim1
- Honorat Bovet1
- House of Requesens1
- Hua Shou1
- Ibn Hisham Al-Ansari1
- Ibn Khallikan1
- Ibn Luyun1
- Ibn al-Ḥājib1
- Ibrāhīm al-Ḥalabī1
- Ibrāhīm al-Ḥusaynī1
- Imam Birgivi1
- Imbert Feutrier1
- Immanuel Bonfils1
- Isaac Israeli ben Joseph1
- Isaac Israeli ben Solomon1
- Isidore of Seville1
- Ismail ibn Hammad al-Jawhari1
- Ivo of Chartres1