The Hattah-Kulkyne National Park is a national park in the Mallee district of Victoria, Australia. The 48,000-hectare (120,000-acre) national park is situated adjacent to the Murray River, approximately 417 kilometres (259 mi) northwest of Melbourne with the nearest regional centre being Mildura. The Hattah Lakes National Park was proclaimed on 7 June 1960, later being greatly expanded in 1980 and becoming the Hattah-Kulkyne National Park. It is a popular destination for bushwalkers and school camping trips.

The Mallee is a sub-region of Loddon Mallee covering the most north-westerly part of Victoria, Australia and is bounded by the South Australian and New South Wales borders. Definitions of the south-eastern boundary vary, however, all are based on the historic Victorian distribution of mallee eucalypts. These trees dominate the surviving vegetation through most of Mallee,. Its biggest settlements are Mildura and Swan Hill.