The Park Avenue Railroad was a horsecar line in Brooklyn, New York. It was incorporated on February 12, 1870. and built a line from Fulton Ferry to 9th Avenue & 20th Street in Brooklyn. It subsequently came under the control of the Long Island Railroad. On October 9, 1874, it was consolidated with the Greenwood and Coney Island Railroad Company to form the Prospect Park and Coney Island Railroad Company.