Bergen Beach is a residential neighborhood in the borough of Brooklyn, New York City. It is located on a peninsula abutting Jamaica Bay in the southeastern portion of the borough, and is bordered by Mill Basin and the neighborhood of the same name to the south and west; the neighborhood of Flatlands to the northwest; Paerdegat Basin and the neighborhood of Canarsie to the northeast; and Jamaica Bay and the Belt Parkway to the east. Bergen Beach contains a sub-neighborhood named Georgetown. The vast majority of residents are white, and the neighborhood generally has a suburban quality.

Bergen Beach was originally an island. The Canarsie Indians who occupied the area referred to it as Winnipague. The island was renamed Bergen Island for early settler Hans Hansen Bergen. From 1896 to 1919, Percy G. Williams and Thomas Adams operated an amusement park in the area. Bergen Beach was connected to the rest of Brooklyn via landfill by 1918, although development did not come for many years. In the 1960s, a housing development called "Georgetowne" was proposed for Bergen Beach, but it was never built due to opposition from local residents. As a result, much of Bergen Beach was not fully developed until the 1990s.