Ulvsjön
| Ulvsjön | |
|---|---|
| Lake Ulvsjön | |
|   Ulvsjön | |
| Coordinates | 59°16′38″N 18°09′47″E / 59.27722°N 18.16306°E | 
| Basin countries | Sweden | 
Ulvsjön is a lake in Stockholm County, Södermanland, Sweden. It is a common spot for locals and tourists alike to jump off the 5 meter cliffs into the water.