| Marnay | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Marnay.svg |
| Coordinates: | 47.2906°N 5.7722°W |
| Insee: | 70334 |
| Postal Code: | 70150 |
| Arrondissement: | Vesoul |
| Canton: | Marnay |
| Mayor: | Vincent Ballot[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 189 |
| Elevation Max M: | 324 |
| Area Km2: | 10.37 |
Marnay (pronounced as /fr/) is a commune in the Haute-Saône department in the region of Bourgogne-Franche-Comté in eastern France.