Archbishop Quigley Preparatory Seminary

Archbishop Quigley Preparatory Seminary was an American seminary preparatory school administered by the Roman Catholic Archdiocese of Chicago for young men considering the priesthood. Located in downtown Chicago, Illinois at 103 East Chestnut Street, adjacent to Loyola University Chicago's Water Tower campus, it closed on 22 June 2007, and became the Archbishop Quigley Center, the pastoral center and headquarters of the Archdiocese after renovations ending 19 November 2008. Between 1961 and 1990, the seminary was split into two campuses: Quigley South and Quigley North, with Quigley North housed at the original building. The south campus was closed in 1990, with all seminary operations returning to the original building.

The predecessor of the school, Cathedral College of the Sacred Heart, was founded in 1905. Cardinal George Mundelein announced plans in 1916 for the building of a preparatory seminary at Rush and Chestnut Streets in downtown Chicago, and named the school in honor of his predecessor, Archbishop James Edward Quigley. Echoing the educational theories of Johann Wolfgang Goethe, Cardinal Mundelein surrounded Quigley students with great architectural beauty:

"This will unquestionably be the most beautiful building here in Chicago, not excluding the various buildings of the University of Chicago."

Quigley's Chapel of St. James, with stained glass modeled after Sainte-Chapelle in Paris, was dedicated upon the seventy-fifth anniversary of the Archdiocese of Chicago and the twenty-fifth anniversary of Mundelein's priestly ordination on 10 June 1920. Designed by the architecture firm of Gustav Steinbeck of New York and Zachary Taylor Davis, with stained glass by Robert Giles of the John J. Kinsella Company of Chicago, it has been listed on the National Register of Historic Places since 1996. The American Institute of Architects Guide to Chicago has termed the stained glass of the Quigley Chapel "dazzling."

The Quigley seminaries have educated almost 2,500 priests, two cardinals, over forty-one bishops, two Vatican II periti, separate recipients of the Medal of Honor and the Presidential Medal of Freedom, the Order of Merit of the Republic of Poland, and, in sports, two members of the Basketball Hall of Fame.