| Type: | Ortsgemeinde |
| Image Coa: | DEU Schmalenberg COA.svg |
| Coordinates: | 49.3183°N 7.7181°W |
| Image Plan: | Schmalenberg in PS.svg |
| State: | Rheinland-Pfalz |
| District: | Südwestpfalz |
| Verbandsgemeinde: | Waldfischbach-Burgalben |
| Elevation: | 420-447 |
| Area: | 10.39 |
| Postal Code: | 67718 |
| Area Code: | 06307 |
| Licence: | PS |
| Gemeindeschlüssel: | 07 3 40 044 |
| Mayor: | Peter Seibert[1] |
| Leader Term: | 2019 - 24 |
Schmalenberg (Schmaleberg) is a municipality in Südwestpfalz district, in Rhineland-Palatinate, western Germany and belongs to the municipal association Waldfischbach-Burgalben.