Jaca, Diocese of
Jackson, Henry Moore
Jacob
Jacob of Jüterbogk
Jacobus de Teramo
Jacopo de Voragine, Blessed
Jacopone da Todi
Jacquier, François
Jaenbert
Jaffna, Diocese of
Jainism
Jamay, Denis
James, Epistle of Saint
James of Brescia
James of Edessa
James of Sarugh
James of the Marches, Saint
James Primadicci
James the Greater, Saint
James the Less, Saint
James Thompson, Blessed
Janauschek, Leopold
Jandel, Alexandre Vincent
Jane Frances de Chantal, Saint
Janner, Ferdinand
Janow, Matthew of
Jansen, Cornelius
Jansenius and Jansenism
Janssen, Johann
Januarius, Saint
Jarcke, Karl Ernst
Jaricot, Pauline-Marie
Jarlath, Saint
Jaro
Jarric, Pierre de
Jason
Jassus
Jassy
Jáuregui, Juan de
Javouhey, Anne-Marie,Ven.
Jealousy
Jean Eudes, Blessed
Jean-Gabriel Perboyre, Blessed
Jeanne de Valois, Saint
Jeaurat, Edmond
Jedburgh
Jehoshaphat, Valley
Jehovah
Jehu
Jemez Pueblo
Jeningen, Venerable Philipp
Jenks, Silvester
Jennings, Sir Patrick Alfred
Jephte
Jeremias
Jeremias, Prophet
Jericho
Jeroboam
Jerome, Saint
Jerome Emiliani, Saint
Jerusalem (Before destruction of 71 AD)
Jerusalem (After destruction of 71 AD)
Jerusalem, Latin Kingdom (1099-1291)
Jerusalem (After 1291)
Jerusalem, Assizes of
Jerusalem, Liturgy of
Jesi
Jesu Dulcis Memoria
Jesuits, The
Jesuit Apologetic
Jesuit Generals Prior to the Suppression
Jesuits, Distinguished
Jesuits, Suppression 
Jesuits, History (1773-1814)
Jesuits, History (1814-1912)
Jesuit's Bark
Jesus Christ
Jesus Christ, Character of
Jesus Christ, Chronology of the Life of
Jesus Christ, Genealogy of
Jesus Christ, Origin of the Name of
Jesus, Daughters of
Jesus and Mary, Sisters of the Holy Childhood of
Jesus Mary, Religious of
Jews, History of the
Jíbaro Indians
Joachim, Saint
Joachim of Flora
Joan, Popess
Joanna of Portugal, Blessed
Joannes de Sacrobosco
Joan of Arc, Saint
Job
Jocelin
Jocelin de Brakelond
Jocelin of Wells
Joel  
Joest, Jan
Jogues, Saint Isaac
John I, Pope Saint
John II, Pope
John III, Pope
John IV, Pope
John V, Pope
John VI, Pope
John VII, Pope
John IX, Pope
John XI, Pope
John XIV, Pope
John XV (XVI), Pope
John XVI (XVII)
John XVII (XVIII), Pope
John XVIII (XIX), Pope
John XXIII, Pope
John, Epistles of
John, Gospel of
John Baptist de la Salle, Saint
John Baptist de Rossi, Saint
John Berchmans, Saint
John Buckley, Venerable
John Chrysostom, Saint
John Climacus, Saint
John Colombini, Blessed
John Cornelius and Companions, Ven.
John Damascene, Saint
John de Britto, Blessed
John Felton, Blessed
John Fisher, Saint
John Nepomucene, Saint
John of Antioch
John of Avila, Blessed
John of Beverley, Saint
John of Cornwall
John of Ephesus
John of Falkenberg
John of Fécamp
John of Fermo, Blessed
John of Genoa
John of God, Saint
John of Montesono
John of Nikiû
John of Paris
John of Ragusa 
John of Roquetaillade
John of Sahagun, Saint
John of Salisbury
John of Segovia
John of Saint Thomas
John of the Cross, Saint
John of Winterthur
John Payne, Blessed
John Rochester, Blessed
John Sarkander, Blessed
John Stone, Blessed
John Story, Blessed
John the Almsgiver, Saint
John the Baptist, Saint
John the Deacon
John the Evangelist, Saint
John the Silent, Saint
Joliet, Louis
Joliette
Jolly, Philipp Johann Gustav von
Jonathan
Jones, Venerable Edward
Jones, Inigo
Jordan, The
Jordanis
Jordanus of Giano
Jörg, Joseph Edmund
Josaphat
Josaphat, Valley of
Josaphat Kuncevyc, Saint
Joseph, Saint
Joseph
Joseph Calasanctius, Saint
Joseph Calasanctius of the Mother of God
Joseph of Arimathea
Joseph of Cupertino, Saint
Joseph of Exeter
Joseph of Issachar
Joseph of Leonessa, Saint
Joseph
Joseph, Sisters of Saint
Josephites
Joseph's Society for Colored Missions
Josephus, Flavius
Josias
Josue
Joubert, Joseph
Jouffroy, Claude-François-Dorothée de
Jouffroy, Jean de
Jouin, Louis
Jouvancy, Joseph de
Jouvenet, Jean
Jovellanos, Gaspar Melchor de
Jovinianus
Jovianus, Flavius Claudius
Jovius, Paulus
Joyeuse, Henri, Duc de
Jubilate Sunday
Jubilee, Holy Year of