Dyker Heights is a predominantly residential neighborhood in the southwest corner of the borough of Brooklyn in New York City. It is on a hill between Bay Ridge, Bensonhurst, Borough Park, and Gravesend Bay. The neighborhood is unofficially bounded by 7th and 14th Avenues, 65th Street, and the Belt Parkway on the west, east, north, and south, respectively.

Dyker Heights originated as a speculative luxury housing development in October 1895 when Walter Loveridge Johnson developed a portion of woodland into a suburban community. During the height of his development, the boundaries were primarily between Tenth and Thirteenth Avenues and from 79th Street to 86th Street. Dyker Heights can be divided in roughly three sections. The southernmost section, south of 86th Street and east of 7th Avenue, contains Dyker Beach Park and Golf Course. The Dyker Heights Civic Association, founded in 1928, is a civic group that represents the community's interests.

Dyker Heights is part of Brooklyn Community District 10 and its primary ZIP Code is 11228. It is patrolled by the 68th Precinct of the New York City Police Department. Politically it is represented by the New York City Council's 43rd District.