The pilgrimage church of Our Lady and parish church of St. Peter and Paul in Steinhausen, a district of Bad Schussenried (Upper Swabia) is a baroque church that was built from 1728 to 1733 for the Imperial Abbey of Schussenried, during the tenure of Abbot Didacus Ströbele.

Planned, built and stuccoed by Dominikus Zimmermann, equipped with art-historically significant ceiling frescoes by his older brother Johann Baptist Zimmermann, it is considered the main work of the Wessobrunn School as well as one of the greatest masterpieces of the early Rococo.

The pilgrimage church is a main attraction of the Upper Swabian Baroque Route as well as the Upper Swabian Way of St. James (the disciple St. James can be found as a ceiling painting in the church).

The church has also been a parish church since 1865 and is often referred to as the “most beautiful village church in the world”.