- God (Islam)--Proof1
- God (Islam)--Will1
- Gunpowder1
- Hair--Dyeing and bleaching1
- Haydajī, Muḥammad ʻAlī, -1927 or 19281
- Hermeneutics1
- Hidāyah (Marghīnānī, ʻAlī ibn Abī Bakr)1
- Hindu mythology1
- Hinduism1
- Holding: University of Pennsylvania1
- Horoscopes1
- Horses--Diseases1
- Houses (Astrology)1
- Human anatomy1
- Hunting1
- 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 Jumayʻ, Hibat Allāh ibn Zayn, -1198. Taṣrīḥ bi-al-maknūn fī tanqīḥ al-Qānūn1
- Ibn al-Sarrāj, Aḥmad ibn Abī Bakr, active 14th century1