The Graham Avenue Line and Tompkins Avenue Line were two public transit lines in Brooklyn, New York City with the Graham Avenue Line running mainly along Graham Avenue and Manhattan Avenue and the Tompkins Avenue Line running mainly along Tompkins Avenue. The Graham Avenue line ran between Downtown Brooklyn and Greenpoint and the Tompkins Avenue Line ran between Prospect Lefferts Gardens and Williamsburg. Originally streetcar lines, they were replaced by the B47 and B62 bus routes which were then combined to form the B43 route which currently operates between Prospect Lefferts Gardens and Greenpoint. The line is dispatched from Jackie Gleason Depot in Sunset Park, Brooklyn.

Greenpoint is the northernmost neighborhood in the New York City borough of Brooklyn, in the U.S. state of New York. It is bordered on the southwest by Williamsburg at Bushwick Inlet Park and McCarren Park; on the southeast by the Brooklyn–Queens Expressway and East Williamsburg; on the north by Newtown Creek and the neighborhood of Long Island City in Queens; and on the west by the East River. The neighborhood has a large Polish immigrant and Polish-American community, containing many Polish restaurants, markets, and businesses, and it is often referred to as Little Poland.