- God (Islam)--History of doctrines1
- God (Islam)--Name--Prayers and devotions1
- God (Islam)--Proof1
- God (Islam)--Will1
- Hair--Dyeing and bleaching1
- Hermeneutics1
- Hidāyah (Marghīnānī, ʻAlī ibn Abī Bakr)1
- Hinduism1
- Holding: University of Pennsylvania1
- Horoscopes1
- Horses--Diseases1
- Human anatomy1
- Hygiene1
- Ibn Bābawayh al-Qummī, Muḥammad ibn ʻAlī, 918 or 919-991 or 992. Man lā yaḥḍuruhu al-faqīh1
- Ibn Faraḥ, Aḥmad ibn Muḥammad, -1300. Manẓūmah al-Ishbīlīyah1
- Ibn al-Sarrāj, Aḥmad ibn Abī Bakr, active 14th century1
- Ibn al-ʻArabī, 1165-1240. Naqsh al-Fuṣūṣ1
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Nuzhat al-naẓar fī tawḍīḥ Nukhbat al-fikar1
- Illumination of books and manuscripts1
- Ilāhʹābādī, Muḥibb Allāh. Taswīyah1