| They-sous-Montfort | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason They sous Montfort (Vosges).svg |
| Arrondissement: | Neufchâteau |
| Canton: | Vittel |
| Intercommunality: | CC Terre d'eau |
| Insee: | 88466 |
| Postal Code: | 88800 |
| Mayor: | Michel Nicolas[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 48.2319°N 5.9756°W |
| Elevation Min M: | 330 |
| Elevation Max M: | 470 |
| Area Km2: | 10.21 |
They-sous-Montfort (in French pronounced as /tɛ su mɔ̃fɔʁ/) is a commune in the Vosges department in Grand Est in northeastern France.