Stensjön is a lake in Stockholm County, Södermanland, Sweden. It is the largest lake in Tyresta National Park.

Stensjön
View of lake
Location of lake
Location of lake
Stensjön
Coordinates59°10′59″N 18°18′42″E / 59.18306°N 18.31167°E / 59.18306; 18.31167
Basin countriesSweden
Surface area~40 ha (99 acres)