Brownsville is a residential neighborhood in eastern Brooklyn in New York City. The neighborhood is generally bordered by Crown Heights to the northwest; Bedford–Stuyvesant and Cypress Hills to the north; East New York to the east; Canarsie to the south; and East Flatbush to the west.

The 1.163-square-mile (3.01 km²) area that comprises Brownsville has 58,300 residents as of the 2010 United States Census. Founded in its current incarnation in 1858, Brownsville was initially a settlement composed of Jewish factory workers. The neighborhood underwent a major demographic change in the 1950s that saw an influx of African-American residents. Since the late 20th century, Brownsville has consistently held one of the highest poverty and crime rates of any neighborhood in New York City.