The Église de l′Invention de la Sainte-Croix (″Church of the Discovery of the Holy Cross″) or, colloquially, Église Sainte-Croix (″Holy Cross Church″) is the mostly medieval parish church of the small town of Kaysersberg, in the Haut-Rhin department of France.

The church is situated on the Romanesque Road of Alsace thanks to its ornate sandstone portal from ca.

1230–1235;[1] it is classified as a Monument historique by the French Ministry of Culture since 1932.

[3][4] The church is filled with notable artworks, all of which are classified as Monuments historiques.

Chief among them are the large wooden polychrome altarpiece of the Passion of Jesus, a 1518 work by the Colmar master Hans Bongart,[5][6] with painted 1621 wings by an otherwise unknown Mathias Wuest;[7] a large triumphal cross — height 425 cm (167 in) — from the late 15th century;[8] a 1521 limewood relief of the Lamentation of Christ;[9] a 1514 sandstone Entombment of Christ;[10] a 1720 pipe organ;[11] besides a substantial number of statues, altars, crucifixes, liturgical objects, and other items ranging from the 15th to the 19th century.