- Italy--Verona1
- Izmīrī, Muṣṭafá ibn Rajab, active 17th century1
- Iḥyāʼ ʻulūm al-dīn (Ghazzālī)1
- James, the Greater, Saint1
- Jataka stories, Burmese1
- Jerónima de la Asunción, madre, 1555-16301
- Jesuit drama, Latin (Medieval and modern)1
- Jewish children1
- Jewish ethics1
- Jewish philosophy1
- Jewish religious poetry, Hebrew1
- Jewish sermons, Hebrew1
- Jewish sermons, Italian1
- Jewish women1
- Jews, Italian1
- Jiménez de Cisneros, Francisco, 1436?-15171
- Jiří, z Poděbrad, King of Bohemia, 1420-14711
- John II, King of Aragon, 1397-14791
- John IV, King of Portugal, 1604-16561
- John Manuel, Prince of Portugal, 1537-15541