Pfarrkirche St. Maria Himmelfahrt, Parish church in Waldshut-Tiengen, Germany.

Pfarrkirche St. Maria Himmelfahrt is a parish church in Waldshut-Tiengen with a Gothic tower base topped by baroque architectural details and decorative stucco throughout. The interior displays rich decoration with skillfully painted ceilings and carefully designed walls.

Construction took place between 1753 and 1755 under architect Peter Thumb and has shaped the townscape since then. The building experienced a special period when it served as an Old Catholic church from 1874 to 1883 during the Kulturkampf era.

The ceiling paintings show religious scenes by Eustachius Gabriel depicting the Assumption of Mary, the Transfiguration of Christ, and the town's patron saints Sebastian and Agatha. These images tell important stories of faith directly above visitors' heads.

The church stands on a limestone spur above the town, directly beside Schloss Tiengen, so the approach is uphill through the old town. The square Gothic tower base from the previous building was kept in 1752 and still shows remains of wall painting and part of a Gothic sacrament house. The nine bells hang in the tower whose upper section was raised on 10 June 1754.

The high altar seen today is not the original: Eustachius Gabriel painted a perspective Assumption of Mary in its place to save money, and this was removed in 1870 as ruinous. Under pastor Hermann Spreter a new high altar by Hermann Kramer of Offenburg was installed in 1938/39.