| Location | Österåker Municipality, Sweden |
|---|---|
| Coordinates | 59°31′20″N 18°17′20″E / 59.52222°N 18.28889°ECoordinates: 59°31′20″N 18°17′20″E / 59.52222°N 18.28889°E |
| Status | Operational |
| Security class | Class 2 |
| Capacity | 93 |
| Opened | 1969 |
| Managed by | Swedish Prison and Probation Service, Stockholm Region |
| Director | Gunilla Ternert |
The Österåker Prison (Swedish: Anstalten Österåker, commonly known as Österåkersanstalten) is a prison located in Österåker Municipality, thirty kilometers north of , Sweden. It is a Class C-security prison with a capacity for 146 inmates. The facility also contains a remand prison with the capacity for 80 inmates.
The Österåker Prison was built in 1969 as a replacement for the Långholmen Prison in Stockholm. Since 1976 the prison is concentrated on inmates with different types of abuse problems.