Frank Hann National Park is a national park in Western Australia, located 428 kilometres (266 mi) east-southeast of the capital, Perth in the Shire of Lake Grace.

The park contains a wide array of flora, including seasonal wildflowers.

The park is found within the Eastern Mallee (IBRA) subregion in southern Western Australia.

Many frog species also inhabit the area including Myobatrachus gouldii, Pseudophryne guentheri and Limnodynastes dorsalis.

[8] Birdlife such as the emu, the Nankeen kestrel, the brown falcon, the little eagle, the crested pigeon, the brush bronzewing, the mulga parrot and the Australian bustard have all been found within the park boundaries.