Église Saint-Ignace, Gothic Revival church in 6th arrondissement, France

The Église Saint-Ignace is a 19th-century church built in Gothic Revival style with soaring pointed arches, vertical lines, and ornate decorations covering its walls inside and out. Its interior contains colorful stained glass windows and multiple richly decorated altars that showcase the skilled craftsmanship of the period.

The first stone was laid on 17 October 1855 and construction was completed in 1858, to plans by the Jesuit father and architect Magloire Tournesac (1805–1875). The building was funded by many donors, including Napoleon III, and was first named the church of the Immaculée-Conception. In 1938 it was taken over by the Society of Jesus; it never served as a parish, a role that remained with Saint-Sulpice. In the early 1970s the old Jesuit residence buildings were demolished and the street frontage was sold off in flats to finance renovation work.

Originally named the Church of the Immaculate Conception, it was renamed for Saint Ignace de Loyola, founder of the Jesuits. It is not a parish church: pastoral and liturgical duties are carried out by Jesuit fathers, and the church adjoins the Centre Sèvres, the Jesuits' faculty of philosophy and theology in Paris. Some of its art depicts the martyrdom of Jesuit missionaries in Japan in the 1860s.

The church sits in an accessible neighborhood with several bus stops and subway stations nearby for easy arrival. Visitors should know that religious services may limit access to certain areas, so visiting outside service times allows better exploration.

The church has no visible facade on Rue de Sèvres: it was long hidden behind the buildings fronting the street, which were demolished only in 1971. Some of its art depicts the martyrdom of Jesuit missionaries in Japan in the 1860s.