- Horology1
- Hotaki, Mir Mahmud, d. 17251
- Human-animal relationships1
- Ibn Faraḥ, Aḥmad ibn Muḥammad, -1300. Manẓūmah al-Ishbīlīyah1
- Ibn Sharaf Shāh, Ḥasan ibn Muḥammad, 1247 or 1248-1315 or 1316. Wāfiyah fī sharḥ al-Kāfiyah1
- Ibn al-Sarrāj, Aḥmad ibn Abī Bakr, active 14th century1
- Ibn al-ʻArabī, 1165-1240. Works1
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Nuzhat al-naẓar fī tawḍīḥ Nukhbat al-fikar1
- Illegible markings1
- Illumination of books and manuscripts, Turkish1
- Imams (Shiites)1
- Inheritance and succession1
- Interest (Islamic law)1
- Iraq1
- Iraq--Baghdad1
- Ishārāt wa-al-tanbīhāt (Avicenna)1
- Islam--Miscellanea--Early works to 18001
- Islam--Theology1
- Islamic civilization1
- Islamic cosmology1