| Image Coa: | DEU Münchweiler COA.svg |
| Coordinates: | 49.5497°N 7.8875°W |
| Image Plan: | Münchweiler an der Alsenz in KIB.svg |
| State: | Rheinland-Pfalz |
| District: | Donnersbergkreis |
| Verbandsgemeinde: | Winnweiler |
| Elevation: | 259 |
| Area: | 7.13 |
| Postal Code: | 67728 |
| Area Code: | 06302 |
| Licence: | KIB |
| Gemeindeschlüssel: | 07 3 33 048 |
| Mayor: | Christoph Stumpf[1] |
| Leader Term: | 2019 - 24 |
| Party: | SPD |
Münchweiler an der Alsenz is a municipality in the Donnersbergkreis district, in Rhineland-Palatinate, Germany.