| Gryttjen | |
| Location: | Gävleborg County, Sweden |
| Coordinates: | 61.8°N 16.2833°W |
| Type: | lake |
| Pushpin Map: | Sweden Gävleborg # Sweden |
| Pushpin Map Alt: | Location of the lake |
Gryttjen is a lake located to the northeast of Järvsö in Gävleborg County, Sweden. It lies along Highway 84. Near its south shore is an island named Tjuvholmen.