| Chassagne-Saint-Denis | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Chassagne-Saint-Denis.svg |
| Coordinates: | 47.0842°N 6.1147°W |
| Insee: | 25129 |
| Postal Code: | 25290 |
| Arrondissement: | Besançon |
| Canton: | Ornans |
| Mayor: | Félix Chopard[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 420 |
| Elevation Max M: | 583 |
| Area Km2: | 9.23 |
Chassagne-Saint-Denis (in French pronounced as /ʃasaɲ sɛ̃ dəni/) is a commune in the Doubs department in the Bourgogne-Franche-Comté region in eastern France.