The Kosciuszko National Park is a 6,900-square-kilometre national park and contains mainland Australia's highest peak, Mount Kosciuszko, for which it is named, and Cabramurra the highest town in Australia. Its borders contain a mix of rugged mountains and wilderness, characterised by an alpine climate, which makes it popular with recreational skiers and bushwalkers.
The park is located in the southeastern corner of New South Wales, 354 km southwest of Sydney, and is contiguous with the Alpine National Park in Victoria to the south, and the Namadgi National Park in the Australian Capital Territory to the northeast. The larger towns of Cooma, Tumut and Jindabyne lie just outside and service the park.
The waters of the Snowy River, the Murray River, the Murrumbidgee River, and the Gungarlin River all rise in this park.
Other notable peaks in the park include Gungartan, Mount Jagungal, Bimberi Peak and Mount Townsend.
On 7 November 2008, the Park was added to the Australian National Heritage List as one of eleven areas constituting the Australian Alps National Parks and Reserves.