| Montreux-Château | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Montreux-Château.svg |
| Coordinates: | 47.6111°N 7.0017°W |
| Insee: | 90071 |
| Postal Code: | 90130 |
| Arrondissement: | Belfort |
| Canton: | Grandvillars |
| Mayor: | Michael Brun[1] |
| Term: | 2023 - 2026 |
| Intercommunality: | Grand Belfort |
| Elevation Min M: | 336 |
| Elevation Max M: | 366 |
| Area Km2: | 4.66 |
Montreux-Château (in French pronounced as /mɔ̃tʁø ʃato/) is a commune in the Territoire de Belfort department in Bourgogne-Franche-Comté in northeastern France.