- Jamālī, Fuḍayl ibn ʻAlī, 1514-1583. ʻAwn al-rāʼiḍ fī fann al-farāʼiḍ1
- Jesuit drama, Latin (Medieval and modern)1
- Jewish diaspora1
- Jewish ethics1
- Jewish interpretations1
- Jewish interpretations of Jesus Christ1
- Jewish travelers1
- Jews--Dietary laws1
- Jews--Persecutions1
- Jiménez de Cisneros, Francisco, 1436?-15171
- Joachim, Saint1
- John I, King of Portugal, 1357-14331
- John II, King of Aragon, 1397-14791
- John II, King of Portugal, 1455-14951
- John, King of England, 1167-12161
- Juana, la Loca, Queen of Castile, 1479-15551
- Judaism--Ari rite1
- Judaism--Liturgy1
- Judaism--Prayers and devotions1
- Judeo-Arabic literature1