| Type: | protected |
| Lake Muir National Park | |
| State: | wa |
| Iucn Category: | II |
| Local Map: | yes |
| Zoom: | 10 |
| Coordinates: | -34.446°N 116.68°W |
| Relief: | yes |
| Nearest Town Or City: | Manjimup |
| Area: | 96.36 |
| Established: | 2004 |
| Managing Authorities: | Parks and Wildlife Service |
| Url: | https://parks.dpaw.wa.gov.au/park/lake-muir |
Lake Muir National Park is a national park in Western Australia, located 290km (180miles) south east of Perth to the south of Muirs Highway in the Shire of Manjimup.[1]
Lake Muir and the Muir-Byenup System, a complex of lakes and wetlands, are located in Lake Muir Nature Reserve, which adjoins the park to the north.[2] The Muir-Byenup system is a designated wetland of international importance under the Ramsar Convention.[3] The lake and wetlands are part of the Warren River catchment.[4]
Lake Muir National Park adjoins Mount Roe National Park to the east and south east, and Mount Frankland North National Park to the south.