The Berlin-Blankenheim railway or Wetzlarer Bahn ("Wetzlar Railway") is a railway line in the German states of Berlin, Brandenburg and Saxony-Anhalt. It is a section of the Kanonenbahn (Cannons Railway) between Berlin and Metz, built between 1877 and 1882. Wetzlar used to be an important rail junction on the Kanonenbahn. The Berlin-Blankenheim line originally ran from Berlin, via Bad Belzig, Güsten, Sandersleben to Blankenheim, where a remnant of it still joins the Halle–Kassel line. The Wiesenburg–Güsten section has carried no traffic since 2004 and is now closed. Only the Berlin–Wiesenburg section is electrified. The Sandersleben–Blankenheim section has only a single track, while the remainder of the still-operating parts of the line is duplicated.
^Eisenbahnatlas Deutschland (German railway atlas). Schweers + Wall. 2009. pp. 35–6, 44–7, 57, 126, 128. ISBN978-3-89494-139-0.