Park Slope is a neighborhood in the western section of Brooklyn, New York City's most populous borough. Park Slope is roughly bounded by Prospect Park West to 4th Avenue, Park Place to the Green-Wood Cemetery according to the New York City Department of City Planning , though other definitions are sometimes offered. It takes its name from its location on the western slope of neighboring Prospect Park. Seventh Avenue and Fifth Avenue are its primary commercial streets, while its east-west side streets are populated by many historic brownstones.

Park Slope is characterized by its historic buildings, top-rated restaurants, bars, and shops, as well as close access to Prospect Park, the Brooklyn Academy of Music, the Brooklyn Botanic Garden, the Brooklyn Museum, the Brooklyn Conservatory of Music, and the library.jsp" target="_blank">Central Library (as well as the Park Slope branch) of the _Brooklyn Public Library system.

The neighborhood had a population of more than 62,000 as of the 2000 census, resulting in a population density of approximately 68,000/square mile (or approximately 26,000/square kilometer) in the area bounded by Fourth Avenue, Prospect Park West, Flatbush Avenue, and Sixteenth Street.

In December 2006 Natural Home magazine named Park Slope one of America's 10 best neighborhoods based on criteria including parks, green spaces and neighborhood gathering spaces; farmer’s markets and community gardens; public transportation and locally-owned businesses; and environmental and social policy. Park Slope is part of Brooklyn Community Board 6.