The St. Marks Avenue station was a station on the demolished section of the BMT Fifth Avenue Line in Brooklyn, New York City. Served by trains of the BMT Culver Line and BMT Fifth Avenue Line, it had 2 tracks and 2 side platforms. The station was opened on June 22, 1889, at Fifth Avenue and St. Marks Place, which is renamed St. Marks Avenue east of Fifth Avenue. It also had a connection to the Bergen Street Line trolleys. It closed on May 31, 1940.