The St. Aloysius Catholic Church is a Catholic parish in the Archdiocese of New York, located at 209-217 West 132nd Street between Adam Clayton Powell Jr. Boulevard and Frederick Douglass Boulevard in the Harlem neighborhood of Manhattan, New York City. It was built in 1902-04 and was designed by – the nephew of James Renwick Jr. – in the Italian Gothic Revival style. It has been called a "little-known treasure". The church was designated a New York City Landmark on January 30, 2007.