| Haidersee | |
| Location: | South Tyrol |
| Coords: | 46.7544°N 10.5319°W |
| Inflow: | Adige, Zerzerbach |
| Catchment: | 33.97km2 |
| Pushpin Map: | Italy South Tyrol |
| Basin Countries: | Italy |
| Area: | 89ha |
| Depth: | 6.70NaN0 |
| Max-Depth: | 150NaN0 |
| Volume: | 6000000m2 |
| Shore: | 4.50NaN0 |
| Elevation: | 14500NaN0 |
| Cities: | Graun im Vinschgau |
The Haidersee is a lake in South Tyrol, Italy, which belongs to the municipality of Graun im Vinschgau.