Church of the Assumption of the Blessed Virgin Mary (Polish: Kościół Wniebowzięcia Najświętszej Marii Panny) in Mstsislaw is a Belarusian Cultural Heritage object, built in 1617–1637 and restored in 1746–1750 by Johann Christoph Glaubitz.

The church was originally constructed for Carmelite monastery and consecrated in honour of the Blessed Virgin Mary only in the 18th century after restoration.

[3] The king Sigismund III Vasa allowed the order to establish its parish and build a first wooden church as early as in 1614.

[4] The church was constructed in a basilica shape with two towers and a five-canted altar apse, flanked by a rectangular side wing with a sacristy and a small chapel on the first floor.

[6] In the 1970–1980s the foundations, vaultings, roof and towers were strengthened, but the restoration stalled due to lack of funds and the interiors were left untouched.