| Type: | Ortsgemeinde |
| Weidenbach | |
| Image Coa: | DEU Weidenbach (Taunus) COA.svg |
| Coordinates: | 50.1558°N 7.8833°W |
| Image Plan: | Weidenbach in EMS.svg |
| State: | Rheinland-Pfalz |
| District: | Rhein-Lahn-Kreis |
| Verbandsgemeinde: | Nastätten |
| Elevation: | 380 |
| Area: | 2.24 |
| Postal Code: | 56355 |
| Area Code: | 06775 |
| Licence: | EMS, DIZ, GOH |
| Gemeindeschlüssel: | 07 1 41 134 |
| Mayor: | Helmut Maxeiner[1] |
| Leader Term: | 2019 - 24 |
Weidenbach (pronounced as /de/) is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany. Its municipal council consists of six members elected by majority vote, and headed by the honorary mayor, or chairman.
Part of the Landgraviate of Hesse-Kassel since 1583, it was occupied by France between 1806 and 1813. After the Congress of Vienna, it was given to the Duchy of Nassau. By 1866, the territory was under Prussian control. It has been part of Rhineland-Palatinate since 1946.