St. Ignatius Church (Czech: Kostel svatého Ignáce) is a church in Prague, Czech Republic. Located on Charles Square, the church was designed by Carlo Lurago in the early Baroque style, and built between 1655 and 1677.^[1] The church was built as part of the new Nove Mesto residence of the city's Jesuits, the third largest Jesuit complex in Europe,^[2] and dedicated to their patron saint and founder of the Jesuit Order, St. Ignatius of Loyola.

The top of the facade carries a statue of St. Ignatius Loyola, placed there in 1671, with a halo surrounding his whole body. This feature was considered controversial at the time it was installed, as such a decoration was only considered appropriate for statues of Jesus Christ.^[2] The decorative painting of the exterior was carried out by Jan Jiří Heinsch and the sculpture work was that of Matěj Václav Jäckel.^[2] The interior is characterised by stucco decoration and features statues of several Jesuit and Czech saints.^[2] Many of the interior furnishings of the church date from around 1770,^[1] added by Jesuit painter Ignác Raab, who lived briefly at the complex.^[3]