| Saint-Cassien | |
| Commune Status: | Commune |
| Arrondissement: | Grenoble |
| Canton: | Voiron |
| Insee: | 38373 |
| Postal Code: | 38500 |
| Mayor: | Paul-Henri Haumesser[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays Voironnais |
| Coordinates: | 45.3608°N 5.5542°W |
| Elevation M: | 360 |
| Elevation Min M: | 307 |
| Elevation Max M: | 424 |
| Area Km2: | 5.67 |
Saint-Cassien (in French pronounced as /sɛ̃ kasjɛ̃/) is a commune in the Isère department in southeastern France.[2]