- Horology2
- Horsemanship2
- Horsemanship--Equipment and supplies2
- Hugh, of Saint-Victor, 1096?-1141. Works.--Selections2
- Huguenots2
- Human anatomy2
- Human-animal relationships2
- Humanists2
- Humor2
- Hus, Jan, 1369?-14152
- Hymns, Armenian2
- Hymns, Ethiopic2
- Ibn Bābawayh al-Qummī, Muḥammad ibn ʻAlī, 918 or 919-991 or 992. Man lā yaḥḍuruhu al-faqīh2
- Ibn Jumayʻ, Hibat Allāh ibn Zayn, -1198. Taṣrīḥ bi-al-maknūn fī tanqīḥ al-Qānūn2
- Ibn Maʻṣūm, ʻAlī ibn Aḥmad, 1642-approximately 1707. Badīʻīyah2
- Ibn Nujaym, Zayn al-Dīn ibn Ibrāhīm, -1563. Ṣaghāʼir wa-al-kabāʼir2
- Ibn Wadʻān, Muḥammad ibn ʻAlī, d. 1101. Arbaʻīn al-Wadʻānīyah2
- Ibn al-Nafīs, ʻAlī ibn Abī al-ḥazm, 1210 or 11-1288. Mūjiz al-Qānūn2
- Ibn al-Nāẓim, Muḥammad ibn Muḥammad, d. 1287 or 8. Sharḥ al-Alfīyah2
- Illegible markings2