Nymboi-Binderay National Park, Nature reserve in Bellingen Shire Council, Australia.

Nymboi-Binderay National Park protects the granite gorges and banks of the Nymboida River, 444 km north of Sydney and about 20 km north of Dorrigo. It also includes stretches of the Little Nymboida River and recreation areas at Cod Hole and The Junction. Rainforest and old-growth forest cover much of the park.

The sources give no logging history, railway remains or 1997 founding date for this park. They record only that it protects the granite gorges and banks of the Nymboida River, with sections of the Little Nymboida River, rainforest and old-growth forest, and patches of the rare Dorrigo white gum.

The park's name combines Nymboi and Binderay, and its rivers are the setting for white-water rafting on the Nymboida rapids. Recreational areas at Cod Hole and The Junction are the spots where visitors gather by the water. The sources record no information on the Gumulgal people or traditional use of the valley.

The park lies about 20 km north of Dorrigo, roughly 444 km north of Sydney. Recreation areas at Cod Hole and The Junction serve as access points on the Nymboida River, and sections of the Little Nymboida River also run through the park. White-water rafters use the Nymboida rapids, so expect fast water where the river narrows between the granite banks.

The park shelters rare Dorrigo white gum trees found in few other places in the region. The forest also hosts many mammal species, some of which face extinction threats and rely on this protected space for survival.