The Cathedral of the Madeleine is a Roman Catholic church in Salt Lake City, Utah, United States. It was completed in 1909 and currently serves as the cathedral, or mother church, of the Diocese of Salt Lake City. It is the only cathedral in the US under the patronage of St. Mary Magdalene. This included building a new altar, moving the bishop's chair, providing a separate chapel for the Blessed Sacrament, and adding a more ample baptismal font. The major restoration of the interior of the cathedral was accomplished through the vision of Monsignor M. Francis Mannion.