| Saint-Denis-de-Vaux | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason fr Saint-Denis-de-Vaux 71.svg |
| Insee: | 71403 |
| Postal Code: | 71640 |
| Arrondissement: | Chalon-sur-Saône |
| Canton: | Givry |
| Mayor: | Fabienne Saint-Arroman[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Le Grand Chalon |
| Coordinates: | 46.7964°N 4.6983°W |
| Elevation M: | 340 |
| Elevation Min M: | 230 |
| Elevation Max M: | 431 |
| Area Km2: | 3.71 |
Saint-Denis-de-Vaux (in French pronounced as /sɛ̃ dəni də vo/) is a commune in the Saône-et-Loire department in the region of Bourgogne-Franche-Comté in eastern France.