- Heraldry1
- Hermits1
- Hilarion, Saint, approximately 291-approximately 3711
- Hindu legends1
- Historiography1
- History, Ancient1
- History, Military1
- History--Philosophy1
- Horses1
- Humanism1
- Humanistic ethics1
- Hymns, Latin (Medieval and modern)1
- Ibn Amīn al-Dawlah, al-ʻAfīf, active 15th century. Lamḥah al-ʻAfīfīyah fī al-ṭibb1
- Ibn Saʻādah, Aḥmad ibn ʻAlī, active 13th century. Risālat al-ʻilm1
- Ibn al-Fāriḍ, ʻUmar ibn ʻAlī, 1181 or 1182-1235. Tāʾīyah1
- Ijtihād (Islamic law)1
- Illegible markings1
- Illinois--Chicago1
- Illumination of books and manuscripts, Italian1
- Illustrated works1