St Michael's Catholic Church, officially the Church of St. Michael, is a Roman Catholic parish church under the authority of the Diocese of Brooklyn, located at 352 42nd Street at Fourth Avenue in the Sunset Park neighborhood of Brooklyn, New York City.

Before the founding of St. Michael's parish in 1870, Catholics in the area had to travel to mass at either St. John the Evangelist at 21st St. or St. Patrick's in Fort Hamilton.

Often referred to as Brooklyn's own "Sacré-Cœur", the domed tower once was the second tallest building in Brooklyn after the Williamsburg Savings Bank Tower, until a late 2000s high rise development claimed that title.

The comedy film Heaven Help Us (1985) was filmed in the neighborhood, using external and internal shots of the church and the now closed St. Michael's Parish School as the fictional St.

Basil's School, run by the factual Order of St.