| Federbach | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Baden-Württemberg |
| Subdivision Type3: | Reference no. |
| Subdivision Name3: | DE: 23748 |
| Length: | 41.7km (25.9miles) |
| Source1 Location: | Where the Am Federbach road branches off Neudorfstraße in Malsch |
| Source1 Elevation: | ca. |
| Mouth Location: | Into the Alb in the southeast of Karlsruhe-Maxau by the B 10 bridge |
| Mouth Elevation: | ca. |
| Basin Size: | 127km2 |
| Custom Label: | References |
The Federbach is a roughly 41adj=midNaNadj=mid stream in the German state of Baden-Württemberg. It flows through the districts of Karlsruhe and Rastatt and discharges today near the Karlsruhe district of Maxau into the Alb.
Its source region lies in the municipality of Malsch on the edge of the Northern Black Forest. Unlike the other streams on the right-hand side of the Upper Rhine Plain the Federbach flows from Malsch initially southwest, then swings west near Muggensturm and accompanies the Rhine northwards for a long way after entering the Rhine lowlands.
As a result of the influence of man from the early 18th century to the 1930s the course of the Federbach was significantly changed. The 1993 water management and ecological pilot project, "Federbach lowland development concept" (Entwicklungskonzept Federbachniederung) aimed to develop the Federbach and its lowland areas into a near-natural region. The planned measures were implemented in 14 construction phases from 1995 to 2009.