The St. Mary of the Angels Church and Monastery is a Roman Catholic parish located in Green Bay, Wisconsin, in the Diocese of Green Bay.

[1] The church is two stories tall and largely made of stone.

Attached to the north side of the church is the monastery wing.

[2] Sebastian Messmer, Bishop of Green Bay, acquired the property of the former St. Stanislaus Kostka Church in 1898 and rededicated it to St. Mary of Czestochowa, intending it to serve the Polish American population of Green Bay.

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