- Horology1
- Houses (Astrology)1
- Human anatomy1
- Hydraulic structures1
- Hydrostatics1
- Hygiene1
- Hymns, Samaritan Aramaic1
- Hymns, Syriac1
- Hāmilī, Abū Bakr ibn ʻAlī ibn Mūsá, d. 1367. Durr al-muhtadī wa-dhukhr al-muqtadiʼ1
- Hārūn al-Rashīd, Caliph, approximately 763-8091
- Ibadites--Doctrines1
- 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 Daqīq al-ʻĪd, Muḥammad ibn ʻAlī, 1228-1302. ʻAqīdah1
- Ibn Fahd, Aḥmad ibn Muḥammad, 1356 or 1357-1437 or 1438. Ghāyat al-ijāzah1
- Ibn Ghāzī, Muḥammad ibn Aḥmad, 1437 or 1438-1513. Munyat al-ḥussāb1
- Ibn Hishām, ʻAbd Allāh ibn Yūsuf, 1309-1360. Awḍaḥ al-masālik li-Alfīyat Ibn Mālik1
- Ibn Jumayʻ, Hibat Allāh ibn Zayn, -1198. Taṣrīḥ bi-al-maknūn fī tanqīḥ al-Qānūn1
- Ibn Malak, ʻAbd al-Laṭīf ibn ʻAbd al-ʻAzīz. Sharḥ Manār al-anwār fī uṣūl al-fiqh1