Meroo National Park, Nature reserve in Shoalhaven, Australia.

Meroo National Park is a coastal park south of Ulladulla, made up of beaches, bushland and a low tree-covered ridge behind the sand. A broad crescent of pale tan sand curves along the shore, with shallow greenish water and lines of white breaking waves; tidal rockpools and a rocky island can be reached at low tide. The terrain averages about 55 metres above sea level.

Meroo was a state forest with an unregulated campground until it was declared a national park in 2001. A bushfire in the 1990s badly damaged the bushland, and constant holiday use added to the pressure. The New South Wales parks authority gave the land protected status so the vegetation could regenerate, then fenced headland areas against erosion and cut back the camping areas.

The park lies within the Ulladulla to Merimbula Important Bird Area, identified by BirdLife International for its importance to swift parrots. Its Meroo Lake and Termeil Lake are recognised as habitats for the endangered green and golden bell frog. The park also links the tall eucalypt forests of Morton National Park to the sea, a corridor used by powerful, sooty and masked owls.

Meroo lies just south of Ulladulla, and its tidal rockpools and rocky island can only be reached on foot at low tide, so time a visit to the tide. Camping is now limited to a few reduced areas, and headland sections are fenced off to slow erosion. The terrain averages about 55 metres above sea level.

Meroo and Termeil lakes are listed as key habitats for the endangered green and golden bell frog, one of 12 threatened species recorded in the park. The park also forms an ecological link between the tall eucalypt forests of Morton National Park and the sea, where powerful, sooty and masked owls live.