Another of the original Dutch towns, established in 1693 as Nieuw Amersfort. Its name was derived from the flat terrain. It included areas now known as Canarsie, Bergen Beach, Mill Basin and Marine Park. It was founded in 1647 and remained farmland until 1875 when horse-car service began along Flatbush Ave, connecting the area to Downtown Brooklyn. Development in this area was somewhat slow as it was not serviced by the railroad. The advent of the automobile resulted in increased development.

• Flatlands Dutch Reformed Church (3931 Kings Highway) was built in 1663 by order of Dutch Governor Peter Stuyvesant. Many early Dutch families are buried in the cemetery next to the church.
• A typical example of Long Island Dutch colonial style can be seen in the Stoothoff-Baxter-Kouwenhoven House (1640 East 48 St) partially constructed in 1747 and completed in 1811.