The Marienkirche is a main church (Hauptkirche) in Wolfenbüttel, Lower Saxony, Germany.

Building began in 1608, directed by Baumeister Paul Francke.

The portals in the north and south are attributed to Jacob Meyerheine [de].

[1][2] The composer Michael Praetorius, the writer Gottfried Wilhelm Sacer and the architect Paul Francke are buried in the church.

The Fürstengruft below the choir contains the graves of 29 members of the ducal house of the Principality of Brunswick-Wolfenbüttel from the beginning of the 17th century to 1767.