| Erlenbach | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Rhineland-Palatinate |
| Length: | 5km (03miles) |
| Basin Size: | 596km2 |
| Source1 Location: | the Eschkopf, |
| Source1 Coordinates: | 49.3125°N 7.8447°W |
| Source1 Elevation: | 460m (1,510feet) |
| Mouth Location: | Confluence with Speyerbach at Speyerbrunn, |
| Mouth Coordinates: | 49.3494°N 7.8711°W |
| Mouth Elevation: | 295m (968feet) |
The Erlenbach (pronounced as /de/) is a river in the Palatinate Forest, in the (Palatinate region of Rhineland-Palatinate. It is the strongest headwater of the Speyerbach, which is the largest river in the Anterior Palatinate.
The Erlenbach rises at a height of about 460 m on the eastern slope of the Eschkopf (609 m), hence on the eastern side of the Palatinate watershed.
If flows generally to the north and after only 5 km flows into the Speyerbach shortly after the latter's nominal spring at Speyerbrunn. Hydrologically speaking, the origin of the Erlenbach is the real origin of the Speyerbach.
The distance from the Erlenbach's spring to the Speyerbach's confluence with the Rhine is 60 km. The drainage basin of the Erlenbach/Speyerbach system measures 596 km².