| Le Masnau-Massuguiès | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Le Masnau-Massuguiès (Tarn).svg |
| Arrondissement: | Castres |
| Canton: | Les Hautes Terres d'Oc |
| Insee: | 81158 |
| Postal Code: | 81530 |
| Mayor: | Nicolas Alibert[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Sidobre Vals et Plateaux |
| Coordinates: | 43.8036°N 2.5092°W |
| Elevation M: | 650 |
| Elevation Min M: | 498 |
| Elevation Max M: | 859 |
| Area Km2: | 47.63 |
Le Masnau-Massuguiès (in French pronounced as /lə masno masyɡjɛs/; Occitan (post 1500);: Lo Mas Nòu e Massuguièrs) is a commune in the Tarn department in southern France.
The Dadou flows west-southwestward through the middle of the commune; it forms part of the commune's eastern and western borders.