| Saint-Jean-d'Avelanne | |
| Commune Status: | Commune |
| Arrondissement: | La Tour-du-Pin |
| Canton: | Chartreuse-Guiers |
| Insee: | 38398 |
| Postal Code: | 38480 |
| Mayor: | Jean-François Pillaud-Tirard[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 45.5078°N 5.6736°W |
| Elevation M: | 300 |
| Elevation Min M: | 256 |
| Elevation Max M: | 549 |
| Area Km2: | 7.85 |
Saint-Jean-d'Avelanne (in French pronounced as /sɛ̃ ʒɑ̃ davlan/) is a commune in the Isère department in southeastern France.[2]