Mühlhausen was a naval ship in service with the German Navy. The ship was launched June 30, 1966 at the Burmester Werft in Bremen with the name Walther von Ledebur. She was a prototype of a new class of ocean-going minesweepers, which however was not accepted by the Bundesmarine. She was commissioned in 1967 and served with a civilian crew as a trials ship for the Wehrtechnische Dienststelle (Defence Technology Agency) until decommissioning in 1994. She had the pennant number A1410 and was categorized as a Type 742 class ship.