- Hurtado de Mendoza, García, Marqués de Cañete, 1535-16091
- Hurufis4
- Hussites1
- Hybrid books4
- Hydraulic structures1
- Hygiene2
- Hymns6
- Hymns, Dutch1
- Hymns, Greek1
- Hymns, Hebrew1
- Hymns, Latin1
- Hymns, Latin (Medieval and modern)1
- Hymns, Samaritan Aramaic9
- Hymns, Syriac1
- Hypothesis1
- Hārūn al-Rashīd, Caliph, approximately 763-8091
- Ibadites1
- 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