Hakkloa
| Hakkloa | |
|---|---|
| Location | Nordmarka, Oslo |
| Coordinates | 60°06′N 10°41′E / 60.100°N 10.683°E |
| Primary outflows | Hakkloelva |
| Basin countries | Norway |
| Surface area | 2.1 km2 (0.81 sq mi) (including Hakklokalven) |
| Surface elevation | 372 m (1,220 ft) |
Hakkloa is a regulated lake in Nordmarka in Oslo, Norway. Hakkloa drains through the river Hakkloelva to the lake Bjørnsjøen, and further to Skjærsjøen and Maridalsvannet.