Author
- Hibetullah bin İbrahim1
- Hippocrates1
- Honorat Bovet1
- Horilamiśra1
- House of Gondi1
- Hua Shou1
- Hélinand of Froidmont1
- Ibn Hisham Al-Ansari1
- Ibn Khallikan1
- Ibn Luyun1
- Ibn al-Ḥājib1
- Iccharamasvamin1
- Isaac Albalag1
- Isaac Israeli ben Joseph1
- Isaac Israeli ben Solomon1
- Isaac ben Joseph of Corbeil1
- Isaac ibn Ezra1
- Isaac ibn Ghiyyat1
- Isidore of Seville1
- Ismail ibn Hammad al-Jawhari1