The Rentenmark (German: [ˈʁɛntn̩ˌmaʁk] ⓘ; RM) was a currency issued on 15 November 1923 to stop the hyperinflation of 1922 and 1923 in Weimar Germany, after the previously used Papiermark had become almost worthless.

After the Occupation of the Ruhr in early 1923 by French and Belgian troops, referred to as the Ruhrkampf, the German government of Wilhelm Cuno reacted by announcing a policy of passive resistance.

This caused the regional economy of the Ruhr, the industrial heartland of Germany, to almost stop.

After Stresemann reshuffled his cabinet in early October, Hans Luther became Minister of Finance.

[2][3] Working with Hjalmar Schacht at the Reichsbank, Luther quickly came up with a stabilization plan for the currency which combined elements of a monetary reform by economist Karl Helfferich with ideas of Luther's predecessor in office Rudolf Hilferding.

Because of the economic crisis in Germany after the First World War, there was no gold available to back the currency.

The Act prohibited the recently privatised Reichsbank from continuing to discount bills and the inflation of the Papiermark immediately stopped.