St. Mary's Assumption Church may refer to:
St. Mary's Assumption Church, Sławno St. Mary's Assumption Church (Cottonport, Louisiana), listed on the National Register of Historic Places in Avoyelles Parish, Louisiana St. Mary's Assumption Church (New Orleans, Louisiana), listed on the National Register of Historic Places in Orleans Parish, Louisiana St. Mary's Assumption Catholic Church, listed on the National Register of Historic Places in Iron County, Michigan
See also Church of the Assumption (disambiguation) St. Mary of the Assumption Church (disambiguation) St. Mary's Church (disambiguation)