| Type: | Ortsgemeinde |
| Image Coa: | DEU Rieschweiler-Mühlbach COA.svg |
| Coordinates: | 49.2467°N 7.5042°W |
| Image Plan: | Rieschweiler-Mühlbach in PS.svg |
| State: | Rheinland-Pfalz |
| District: | Südwestpfalz |
| Verbandsgemeinde: | Thaleischweiler-Wallhalben |
| Elevation: | 320 |
| Area: | 10.42 |
| Postal Code: | 66509 |
| Area Code: | 06336 |
| Licence: | PS |
| Gemeindeschlüssel: | 07 3 40 222 |
| Mayor: | Peter Roschy[1] |
| Leader Term: | 2019 - 24 |
| Party: | SPD |
Rieschweiler-Mühlbach is a municipality in Südwestpfalz district, in Rhineland-Palatinate, western Germany.