Årsjön, Tyresta
| Årsjön | |
|---|---|
 Lake Årsjön, view towards north-east along the lake from the western shore. | |
| Basin countries | Sweden |
Årsjön is a lake of Södermanland, Sweden. It is located in Tyresta National Park.
Coordinates: 59°11′23″N 18°16′20″E / 59.18972°N 18.27222°E