Sunset Park is a neighborhoo in the southern section of the New York City borough of Brooklyn, USA. The neighborhood is located south of Greenwood Heights, Brooklyn, Park Slope and Windsor Terrace, separated by the southern borders of the Green-Wood Cemetery, while 65th Street and the Gowanus Expressway / I-278 mark the southern boundary of the community with Bay Ridge. The community extends westward from Borough Park at 9th Avenue, all the way to the piers of Brooklyn's waterfront and the Brooklyn Army Terminal.