The Rappenkrieg was a conflict that lasted from July 1612 until September 1614 in the Further Austrian district of Breisgau. It involved the Austrian rulers putting down a peasant uprising. The uprising occurred in what is now the Swiss Canton of Aargau and in the southern portion of what is now the German State of Baden-Württemberg. It is not to be confused with the Rappenkrieg in Basel-Stadt, Switzerland (1591–1594), although it had similar causes.