The Lauter is a river in Germany and France, left tributary of the Rhine. Its length is 55km. It is formed by the confluence of two headstreams 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.
