Stirling Range National Park is a national park in the Great Southern region of Western Australia, approximately 337 kilometres (209 mi) south-east of Perth.

The Stirling Range or Koikyennuruff is a range of mountains and hills in the Great Southern region of Western Australia, 337 kilometres (209 mi) south-east of Perth. It is over 60 kilometres (37 mi) wide from west to east, stretching from the highway between Mount Barker and Cranbrook eastward past Gnowangerup. The Stirling Range is protected by the Stirling Range National Park, which was gazetted in 1913, and has an area of 1,159 km2 (447 sq mi).