Klein Flottbek (Botanischer Garten) railway station is on the Altona-Blankenese line and serviced by the Hamburg city trains. Rapid transit trains of lines S1 and S11 of the Hamburg S-Bahn call at the station in the Klein Flottbek subdistrict in the Nienstedten quarter of Altona borough in Hamburg, Germany. The track forms the border of the Osdorf quarter. The station is near the main entrance of the Botanischer Garten Hamburg, in Osdorf.