Kahurangi National Park in the northwest of the South Island of New Zealand is the second largest of the thirteen national parks of New Zealand. It was gazetted in 1996 and covers 4,529 square kilometres (1,749 sq mi), ranging to near Golden Bay in the north. Much of what was the North-west Nelson Forest Park formed the basis of the new park.
Kahurangi Point, regarded as the boundary between the West Coast and Tasman Regions, is located in the park, as are the Heaphy Track and Mount Owen.
The park is administered by the Department of Conservation. Tramping, rafting and caving are popular activities in the park. After being prohibited for several years, mountain-biking was allowed on the Heaphy Track on a trial basis for the winters of 2011, 2012 and 2013. The effect of the cyclists on trampers and the wildlife were to determine whether the trial continued or not.