Lauterbourg is a commune and Bas-Rhin department in the Grand Est administrative region in north-eastern France. Situated on the German border and not far from the German city of Karlsruhe, it is the easternmost commune in Metropolitan France. The German town across the border is Neulauterburg.

The geography of France consists of a terrain that is mostly flat plains or gently rolling hills in the north and west and mountainous in the south and the east. Metropolitan France has a total size of 551,695 km2 (213,011 sq mi). It is the third largest country in Europe by area and the largest in Western Europe.