Fort Hamilton High School is a public high school in Brooklyn, New York, United States, under the jurisdiction of the New York City Department of Education. Students in Bay Ridge, Sunset Park and Dyker Heights are zoned to Fort Hamilton HS. It is named for the Army garrison at Fort Hamilton.

Bay Ridge is a neighborhood in the southwest corner of the New York City borough of Brooklyn. It is bounded by Sunset Park to the north, Dyker Heights to the east, the Narrows and the Belt Parkway to the west, and Fort Hamilton Army Base and the Verrazzano-Narrows Bridge to the south. The section of Bay Ridge south of 86th Street is sometimes considered part of a sub-neighborhood called Fort Hamilton.