Frank Hann National Park, Nature reserve in Western Australia, Australia

Frank Hann National Park is a 676 km² national park in the Shire of Lake Grace, Western Australia, 428 km east-southeast of Perth. It protects inland sandplain covered by heathland and scrub, with mallee on deeper sands and eucalypts such as Eucalyptus gracilis and Eucalyptus eremophila. Banksias including Banksia elderiana and Banksia media grow among the shrubs.

The reserve was formally established in 1970 as a protected area, named after explorer Frank Hann who surveyed the region at the start of the 1900s. His expeditions through these inland areas contributed to early knowledge of the landscape.

The park is named after Frank Hann, who explored the district in 1901; the name was formally adopted when the park was named on 30 October 1970. Visitors today see a reserve of heathland and mallee scrub on inland sandplain, with no facilities and no entrance fee, reached by gravel tracks from Lake King.

The park is free to enter year-round, but no facilities or amenities operate within its boundaries, so visitors must come fully prepared with supplies. Bring a location beacon, water, and let someone know your plans before heading into the reserve.

Between September and January, the park bursts with wildflowers including eucalyptus blooms, banksias, wattles, and native feather flowers that dot the landscape. This window offers one of the best times to witness the full colour and variety of local flowering plants.