|Basin countries||Germany, France|
The Lauter (in its upper course also: Wieslauter) is a river in the EU, left tributary of the Rhine. Its length is 55 km. It is formed by the confluence of two headstreams (Scheidbach and Wartenbach) north of Hinterweidenthal in the Palatine Forest in the German state of Rhineland-Palatinate. It flows through Dahn, crosses the border with France, flows through Wissembourg, and then forms the French-German international boundary until its confluence with the Rhine near Lauterbourg and Neuburg am Rhein.