Immaculate Heart of Mary Church (Polish: Kościół Niepokalanego Serca Najświętszej Maryi Panny), is a Catholic parish church in Cleveland, Ohio and part of the Diocese of Cleveland. It is a located on Lansing Ave. near East 66th St., in a part of the South Broadway neighborhood previously known as Warszawa, also referred to today as Slavic Village. Both the church and the area are GNIS named features. The church is in the neighborhood of, but not within, the area listed as Warszawa Neighborhood District on the National Register of Historic Places. The church, school, rectory, and convent buildings are listed together as a Cleveland Designated Landmark.