| Herdsman Lake | |
|---|---|
 Looking across a dredged section of the lake towards Perth | |
  Herdsman Lake | |
| Location | Perth, Western Australia |
| Coordinates | 31°55′12″S 115°48′25″E / 31.92000°S 115.80694°E |
| Basin countries | Australia |
| Designation | Herdsman Lake Regional Park |
| Max. length | 2.5 km (1.6 mi) |
| Max. width | 2 km (1.2 mi) |
| Surface area | 3 km2 (1.2 sq mi) |
| Settlements | Perth |
 | |
Herdsman Lake (Nyungar: Njookenbooro) is a freshwater lake located on the Swan Coastal Plain, 6 kilometres (3.7 mi) north-west of Perth, Western Australia, in the suburb of Herdsman. The main shared-use path around the lake is approximately 8 kilometres in length, whilst the wetland perimeter of the lake is approximately 7.5 kilometres.