The Rappbode is a right-hand, southwestern tributary of the River Bode in the Harz mountains in the German state of Saxony-Anhalt.

The Rappbode rises east of the B 4 federal road near the Jägerfleck at the junction of the three federal states of Lower Saxony, Saxony-Anhalt and Thuringia.

Its source is about 3 kilometres (2 mi) southwest of Benneckenstein and southeast of Hohegeiß at an elevation of 575 metres (1,886 ft) above sea level.

On the opposite side of the B 4 there are numerous source streams of the river Zorge.

This article related to a river in Saxony-Anhalt is a stub.