- Hybrid books18
- Hydrostatics1
- Hygiene2
- Hymnals1
- Hymns5
- Hymns, Armenian1
- Hymns, Church Slavic1
- Hymns, Dutch1
- Hymns, Greek1
- Hymns, Hebrew2
- Hymns, Judeo-Arabic1
- Hymns, Latin5
- Hymns, Latin (Medieval and modern)2
- Hymns, Samaritan Aramaic11
- Hymns, Syriac2
- Hypothesis1
- 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