| Type: | Ortsgemeinde |
| Image Coa: | DEU Knopp-Labach COA.svg |
| Coordinates: | 49.3328°N 7.5062°W |
| Image Plan: | Knopp-Labach in PS.svg |
| State: | Rheinland-Pfalz |
| District: | Südwestpfalz |
| Verbandsgemeinde: | Thaleischweiler-Wallhalben |
| Elevation: | 350 |
| Area: | 5.95 |
| Postal Code: | 66917 |
| Area Code: | 06375 |
| Licence: | PS |
| Gemeindeschlüssel: | 07 3 40 215 |
| Mayor: | Ralph Schneider[1] |
| Leader Term: | 2019 - 24 |
Knopp-Labach is a municipality in Südwestpfalz district, in Rhineland-Palatinate, western Germany. It is situated approximately 15 km northwest of Pirmasens, and 15 km northeast of Zweibrücken. Until 1 July 2014, when it became part of the Verbandsgemeinde ("collective municipality") Thaleischweiler-Wallhalben, Knopp-Labach had been a part of the Verbandsgemeinde Wallhalben.