The West End Line or New Utrecht Avenue Line was a surface transit line in Brooklyn, New York City, United States, running along New Utrecht Avenue and other streets between Coney Island and Sunset Park. Built by the Brooklyn, Bath and Coney Island Railroad as a steam line, it became a trolley line, along which elevated trains ran until the new elevated BMT West End Line opened. This route is no longer part of any bus line; its southern part was part of a bus route. In 2013, the B64 route to Coney Island was restored.

Coney Island is a peninsular neighborhood and entertainment area in the southwestern section of the New York City borough of Brooklyn. The neighborhood is bounded by Brighton Beach to its east, Lower New York Bay to the south and west, and Gravesend to the north and includes the subsection of Sea Gate on its west. More broadly, the Coney Island peninsula consists of Coney Island proper, Brighton Beach, and Manhattan Beach. This was formerly the westernmost of the Outer Barrier islands on the southern shore of Long Island, but in the early 20th century it became a peninsula, connected to the rest of Long Island by land fill.