Windsor Terrace is a small residential neighborhood in the northwestern part of the New York City borough of Brooklyn. As of the 2010 United States Census, Windsor Terrace had 20,988 people living within its 0.503-square-mile (1.30 km²) area. Its ZIP codes are 11215 and 11218.

Windsor Terrace is situated between Prospect Park on the east and northeast, Park Slope to the northwest, Green-Wood Cemetery to the southwest, and Kensington to the south. It is considered to be within the area historically known as South Brooklyn. A part of Community Board 7, the neighborhood is patrolled by the NYPD's 72nd Precinct and protected by FDNY's Engine Company 240.