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.
The B43 route is a combination of the then discontinued B47 (although the route number is still used today for a different service) and B62 routes. The B47 route replaced the Tompkins Avenue Line running between Prospect-Lefferts Gardens and Williamsburg along Empire Boulevard, Kingston Avenue, Tompkins Avenue, and Harrison Avenue, and the B62 route replaced the Graham Avenue line running between Downtown Brooklyn and Greenpoint along Flushing Avenue, Manhattan Avenue and Graham Avenue. On September 10, 1995, the B47 and B62 were combined to form the present-day B43 route. When the routes were combined, the Harrison Avenue portion of the B47 was removed along with the Flushing Avenue section of the B62.
The B43 bus route runs between Lincoln Road near Ocean Avenue and the Prospect Park subway station in Prospect-Lefferts Gardens and Manhattan Avenue and Box Street in Greenpoint via Manhattan Avenue, Graham Avenue, and Tompkins Avenue at all times.