St. Mary's (German: St. Maria von der Immerwährenden Hilfe, literally "St. Mary of the perpetual help") is the name of the Catholic Church of the German town Helminghausen, Marsberg, North Rhine-Westphalia, Germany.

On 8 July 1906 the foundation stone was laid on an area which was spent by the land tenure Eduard Isphording.

Young men of the town Helminghausen built the church with timber; two steel bells came from the “Bochumer Verein für Bergbau und Gussstahlfabrikation".

Since the mid-50s, the patron saint of the Church is called Maria von der Immerwährenden Hilfe.

This article about a Roman Catholic church building in Germany is a stub.