| Type: | Ortsgemeinde |
| Image Coa: | DEU Sauerthal COA.svg |
| Coordinates: | 50.0858°N 7.8217°W |
| Image Plan: | Sauerthal in EMS.svg |
| State: | Rheinland-Pfalz |
| District: | Rhein-Lahn-Kreis |
| Verbandsgemeinde: | Loreley |
| Elevation: | 208 |
| Area: | 3.57 |
| Postal Code: | 65391 |
| Area Code: | 06726 |
| Licence: | EMS, DIZ, GOH |
| Gemeindeschlüssel: | 07 1 41 122 |
| Mayor: | Stefan Vohs[1] |
| Leader Term: | 2019 - 24 |
Sauerthal is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany.