| Eichelbach | |
| River | |
| Country | Germany | 
|---|---|
| State | Hesse | 
| Part of | Rhine | 
| Tributaries | |
| - left | Eckardsbach (Waidbach), Schandwiesenbach | 
| Source | Vogelsberg north of Hoherodskopf, east of Schotten (Breungeshain) | 
| - elevation | 700 m (2,297 ft) | 
| Mouth | Nidda (Eichelsdorf), in the Nidda river | 
| - elevation | 165 m (541 ft) | 
| - coordinates | 50°27′18″N 9°3′18″E / 50.45500°N 9.05500°ECoordinates: 50°27′18″N 9°3′18″E / 50.45500°N 9.05500°E | 
| Length | 18.2 km (11 mi) | 
| Basin | 37.619 km2 (15 sq mi) | 
| Discharge | |
| - average | .5787 m3/s (20 cu ft/s) | 
The Eichelbach is a river of Hesse, Germany. It is a tributary of the Nidda, 18 km long.
The Eichelbach has its source in Vogelsberg, north of the Hoherodskopfes and east of the town Schotten-Breungeshain. It discharges into the Nidda river at the town of Nidda. Since the summer of 2009 a retention basin is being built upstream from Eichelsdorf by the Nidda water board, with a capacity of 390,000 m³, to protect the villages on the Eichelbach and the Nidda.
The Eichelbach flows through the following villages:
The water quality of the Eichelback is deemed good.