- ✠ St. James of Nisibis, Bishop and Doctor of the Syrian Church
- ✠ St. James of the March, of Ancona, Franciscan Priest
- ✠ St. James the Greater, Apostle, Patron of Spain
- ✠ St. Jane Frances de Chantal, Foundress of the Order of the Visitation of The Blessed Virgin Mary
- ✠ St. Jane of Valois, Queen
- ✠ Saint Januarius, Bishop of Beneventum, Martyr
- ✠ Bl. Jeanne Leber, Recluse
- ✠ Saint Jerome, Doctor of the Church
- ✠ St. Jerome Emiliani, Founder of the Congregation of Regular Clerics, called the Somascans
- ✠ Saint Joachim, Father of the Most Blessed Virgin Mary
- ✠ St. Joan Antide Thouret, Foundress of the Daughters of Saint Vincent de Paul
- ✠ St. Joan of Arc, Virgin, Martyr
- ✠ Saint John, Apostle, Evangelist, and Prophet
- ✠ Sts. John and Paul, Martyrs
- ✠ St. John Baptist de LaSalle, Priest, Founder of the Brothers of the Christian Schools
- ✠ St. John before the Latin Gate
- ✠ St. John Berchmans, Jesuit Seminarian
- ✠ St. John Bosco, Priest, Founder of the Salesians
- ✠ St. John Cantius, Priest
- ✠ St. John Capistran, Confessor, priest, Franciscan Friar
- ✠ St. John Chrysostom, Bishop of Constantinople, Doctor of the Church
- ✠ St. John Climacus, Abbot
- ✠ St. John Damascene, Doctor of the Church
- ✠ St. John de Britto, Martyr
- ✠ St. John Eudes, Founder of the Congregation of Jesus and Mary (Eudists) and the Sisters of Our Lady of Charity
- ✠ St. John Francis Regis, Jesuit missionary
- ✠ St. John Gabriel Perboyre, Lazarist Priest and Martyr
- ✠ St. John Gualbert, Founder
- ✠ St. John Joseph of the Cross, Confessor, priest, Franciscan Friar
- ✠ St. John Mary Vianney, Curé of Ars, Confessor
- ✠ St. John Nepomucene, Priest and Martyr
- ✠ St. John of Egypt, Solitary
- ✠ St. John of God, Founder of the Brothers of Charity
- ✠ St. John of Matha, Priest, Founder of the Order of the Trinity
- ✠ St. John of Sahagun, (or St. Fagondez), Confessor, Augustinian Priest
- ✠ St. John of the Cross, Carmelite Priest, Doctor of the Church
- ✠ St. John the Almsgiver, Patriarch of Alexandria
- ✠ Bl. John the Discalced, Franciscan Friar
- ✠ St. John the Silent, Bishop, Monk of Saint Sabas
- ✠ Sts. Jonas and Barachisius, and their Companions, Martyrs
- ✠ Saint Josaphat, Archbishop and Martyr
- ✠ Saint Joseph, Spouse of the Blessed Virgin, Virginal Father of Jesus and Patron of the Universal Church
- ✠ St. Joseph Benedict Cottolengo, Founder of the Piccola Casa of Turin
- ✠ St. Joseph Calasanctius, Founder of the Clerks Regular of Religious Schools (Piarists)
- ✠ Bl. Joseph Chiwatenhwa, Huron Martyr
- ✠ St. Joseph of Cupertino, Franciscan Priest
- ✠ St. Joseph the Worker
- ✠ Saint Juan Diego, Visionary of Our Lady of Guadelupe
- ✠ Saint Julia, Virgin, Martyr Patron of Corsica
- ✠ Sts. Julian and Basilissa, Martyr, and his wife
- ✠ St. Juliana Falconieri, Nun of the Order of the Servants of Mary or Servite Order
- ✠ St. Juliana of Mt. Cornillon, Virgin
- ✠ Sts. Julitta and Cyricus, (or Quiricus), Martyrs
- ✠ St. Julius I, Pope
- ✠ Saint Justin, Philosoph, Martyr
