- Italy--Vercelli (Province)1
- Jaina illumination of books and manuscripts1
- Jaina painting1
- Jainism1
- James, the Greater, Saint1
- Javanese language1
- Jerome, Saint, -419 or 4201
- Jerónima de la Asunción, madre, 1555-16301
- Jesuit drama, Spanish1
- Jewish sermons, Hebrew1
- Jews1
- Jiménez de Cisneros, Francisco, 1436?-15171
- John II, King of Aragon, 1397-14791
- John IV, King of Portugal, 1604-16561
- John Manuel, Prince of Portugal, 1537-15541
- John V, King of Portugal, 1689-17501
- Judaism--Liturgy--Texts1
- Justa, Saint, -approximately 2871
- Karo-Batak dialect1
- Knights of Malta1