Dharawal National Park, National park in the Illawarra region, New South Wales, Australia

Dharawal National Park is a 6,508-hectare protected area on the Woronora Plateau, about 45 km south-west of Sydney between the Illawarra Range and the Georges River. Its creeks, including O'Hares and Stokes, cut gorges and waterfalls into Triassic Hawkesbury Sandstone, and the park also holds upland swamps, sandstone woodland, rainforest and eastern gully forest. It is entered from Darkes Forest, Wedderburn or Appin.

In 1927 the O'Hares Creek catchment was proclaimed a water catchment for the Metropolitan Water, Sewerage and Drainage Board. After the board dropped it as a water supply in 1978, the state proposed a recreation area, but the catchment was only declared a nature reserve and state recreation area in 1996. On 26 March 2012 most of the state conservation area became a national park, with three state conservation areas kept for ongoing mining.

The name Dharawal comes from the Aboriginal community that lived in the region for over 15,000 years, from Botany Bay south to the Shoalhaven River. About 236 archaeological sites lie within the park, with rock art made using black charcoal, white clay and red, yellow or orange ochre. The park falls within the Tharawal and Illawarra Aboriginal Land Councils' areas.

Access is limited: there are three entry points, from Darkes Forest in the east, Wedderburn in the north and Appin in the south. The park lies about 45 km south-west of Sydney and 35 km north-west of Wollongong. Rainfall ranges from 850 to 1,550 mm a year, and the shallow sandy soils are prone to severe erosion, so stay on formed tracks.

The park's upland swamps are considered the most species-rich shrub and sedge vegetation in the world, holding over 140 plant species. More than 200 km of waterways and 26 swamps drain toward the Nepean and Georges rivers, with catchment streams discharging an estimated 40,000 megalitres a year.