- Homosexuality1
- Homosexuality--Religious aspects--Islam1
- Horology1
- Human anatomy1
- Humāmī, Aḥmad ibn Thābit, d. 1233 or 4. Ghunyat al-ḥussāb fī ʻilm al-ḥisāb1
- Hunting1
- Hydrostatics1
- Hygiene1
- Hymns1
- Hāmilī, Abū Bakr ibn ʻAlī ibn Mūsá, d. 1367. Durr al-muhtadī wa-dhukhr al-muqtadiʼ1
- Hāmī, Ibrāhīm. Arbaʻūn ḥadīth1
- Hārūn al-Rashīd, Caliph, approximately 763-8091
- Ibn Abī Jumhūr al-Aḥsāʾī, Muḥammad ibn ʻAlī, -approximately 1473. Masālik al-afhām1
- Ibn Abī al-Rijāl, ʻAlī, 1015 or 1016-1062 or 1063. Dalālah al-kullīyah ʻan al-ḥarakāt al-falakīyah1
- Ibn Amīn al-Dawlah, al-ʻAfīf, active 15th century. Lamḥah al-ʻAfīfīyah fī al-ṭibb1
- Ibn Barrī, ʻAbd Allāh, 1106-11871
- Ibn Barrī, ʻAlī ibn Muḥammad, approximately 1261-approximately 1330. Sharḥ Mawrid al-ẓamʼān1
- Ibn Bābawayh al-Qummī, Muḥammad ibn ʻAlī, 918 or 19-991 or 2. Man lā yaḥḍuruhu al-faqīh1
- Ibn Fahd, Aḥmad ibn Muḥammad, 1356 or 1357-1437 or 1438. Ghāyat al-ijāzah1
- Ibn Faraḥ, Aḥmad ibn Muḥammad, -1300. Manẓūmah al-Ishbīlīyah1