- God--Omniscience2
- Greece--Peloponnesus (Peninsula)2
- Haidar Ali, Nawab of Mysore, approximately 1722-17822
- Hair--Dyeing and bleaching2
- Hair--Removal2
- Hamzīyah fī madḥ Khayr al-Barīyah (Būṣīrī, Sharaf al-Dīn Muḥammad ibn Saʻīd)2
- Hayākil al-nūr (Suhrawardī, Yaḥyá ibn Ḥabash)2
- Hermetism2
- Hinduism--Doctrines2
- Historical geography2
- Historiography2
- History--Philosophy2
- Homosexuality--Religious aspects--Islam2
- Hygiene2
- Ibadites2
- Ibn Qaḍīb al-Bān, ʻAbd Allāh ibn Muḥammad, -1684 or 1685. Dālīyah2
- Ibn Taymīyah, Aḥmad ibn ʻAbd al-Ḥalīm, 1263-13282
- Ibn al-Fāriḍ, ʻUmar ibn ʻAlī, 1181 or 1182-1235. Tāʼīyah2
- Ibn al-Hāʼim, Aḥmad ibn Muḥammad, -1412. Lumaʻ al-yasīrah fī ʻilm al-ḥisāb2
- Ibn al-Jazarī, Muḥammad ibn Muḥammad, 1350-1429. Arbaʻūn masʼalah min masāʼil muskhilah2