Watagans National Park, National park in New South Wales, Australia

Watagans National Park is a protected area in New South Wales, Australia, covering rainforest gullies, tall eucalyptus forests, and a network of walking trails. The terrain shifts from shaded, moist valleys to higher ridgelines with different vegetation.

The New South Wales government established the park in 1999 as part of broader efforts to protect forested land in the region. Before that, parts of the area had been used for timber cutting, which shaped the landscape visitors see today.

The park's name comes from the Watagan Range, and its forests hold evidence of Aboriginal use, though the sources consulted give no count of sites. Cedar getters arrived in the early 1820s, followed by settlers cutting hardwood for the growing coal mining industry; sawmills, tracks and timber tramways followed. The 1916 Forestry Commission reserved the area as state forest, and it became a national park in 1999.

The park is accessible via Heaton Road or Mount Faulk Road, and camping is available at a few spots with basic facilities such as grills. Trails can become slippery after rain, so sturdy footwear is a good idea before heading in.

The Great North Walk passes through the park and leads to Gap Creek Falls, a small waterfall tucked inside a narrow gorge. Along the way, Illawarra flame trees and red cedars grow beside the trail, which are rarely seen elsewhere in the region.