The Bundesstraße 6n is a German federal road that runs east-west from the Vienenburg district of Goslar to Bernburg, where it connects to the A14.

After it is opened to traffic and the old Bundesstraße is downgraded to a Landesstraße or Kreisstraßen the B 6n will be renumbered the B 6 from Goslar to Aschersleben, the remaining section to the A 14 will become the B 185.

During ultrasound testing on the route of the B 6n numerous sites of archaeological significance were found, including a burial hut (Totenhütte ) of the Bernburg culture near Benzingerode in the borough of Wernigerode.

This has relieved through traffic in the towns and villages by providing a motorway-like Schnellstraße or so-called "yellow motorway" (gelbe Autobahn).

[2] According to the court decision, all applications for the B 6n gained governmental approval, which meant that the B 6n could be completed in the direction of the A 14 and lengthened as far as Bernburg.