| Mérey-Vieilley | |
| Commune Status: | Commune |
| Coordinates: | 47.3336°N 6.0633°W |
| Insee: | 25376 |
| Postal Code: | 25870 |
| Arrondissement: | Besançon |
| Canton: | Baume-les-Dames |
| Mayor: | Philippe Pernot[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Grand Besançon Métropole |
| Elevation Min M: | 216 |
| Elevation Max M: | 600 |
| Area Km2: | 3.42 |
Mérey-Vieilley (in French pronounced as /meʁɛ vjɛjɛ/) is a commune in the Doubs department in the Bourgogne-Franche-Comté region in eastern France.
The commune lies 9km (06miles) west of Marchaux.