- Homage (Feudal law)2
- Home economics2
- Horace2
- Horsemanship2
- Horsemanship--Equipment and supplies2
- Horses--Diseases2
- Hospital care2
- Housing2
- Hugh, of Saint-Victor, 1096?-1141. Works.--Selections2
- Hus, Jan, 1369?-14152
- Hygiene2
- Hymns, Ethiopic2
- Ibn Wahbān, ʻAbd al-Wahhāb ibn Aḥmad, d. 1366 or 7. Qayd al-sharāʼid2
- Ibn al-Hāʼim, Aḥmad ibn Muḥammad, -1412. Lumaʻ al-yasīrah fī ʻilm al-ḥisāb2
- Ibn al-Jazarī, Muḥammad ibn Muḥammad, 1350-1429. Arbaʻūn masʼalah min masāʼil muskhilah2
- Idra rabba2
- Illegitimacy2
- Illumination of books and manuscripts, German2
- Illusion (Philosophy)2
- India--Andhra Pradesh2