| Marnans | |
| Commune Status: | Commune |
| Arrondissement: | Vienne |
| Canton: | Bièvre |
| Insee: | 38221 |
| Postal Code: | 38980 |
| Mayor: | Bernard Gillet[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Bièvre Isère |
| Coordinates: | 45.2956°N 5.2378°W |
| Elevation Min M: | 441 |
| Elevation Max M: | 630 |
| Area Km2: | 6.6 |
Marnans (in French pronounced as /maʁnɑ̃/) is a commune in the Isère department in southeastern France.