The Bist (archaic , ) is a river in France and in Germany, and a left tributary of the Saar. It is long, of which within France and on the French-German border.
The Bist begins near the French village of Boucheporn, Lorraine and flows northeastward to Creutzwald. From there it follows the Franco-German border northward to ÃÂberherrn, then flows eastward to (a district of Wadgassen) and northward to join the Saar immediately north of the Autobahn 620 bridge in Wadgassen, Saarland.