| Marcollin | |
| Commune Status: | Commune |
| Arrondissement: | Vienne |
| Canton: | Bièvre |
| Insee: | 38219 |
| Postal Code: | 38270 |
| Mayor: | Anaïs Scala[1] |
| Term: | 2021 - 2026 |
| Coordinates: | 45.3064°N 5.0886°W |
| Elevation Min M: | 279 |
| Elevation Max M: | 442 |
| Area Km2: | 10.69 |
Marcollin (in French pronounced as /maʁkɔlɛ̃/) is a commune in the Isère department in southeastern France.