Triunia National Park, National park in Queensland, Australia

Triunia National Park is a 34-hectare national park in the Wide Bay-Burnett region of Queensland, about 92 km north of Brisbane and 150 km south of Hervey Bay. It protects coastal subtropical rainforest on land rising to 260 m. There are no roads or visitor facilities inside the park.

Triunia National Park is a 34-hectare protected area in the Wide Bay-Burnett region of Queensland, about 92 km north of Brisbane and 150 km south of Hervey Bay. It protects coastal subtropical rainforest reaching up to 260 m in elevation. The park has no roads or visitor facilities, and it neighbours Mapleton, Mapleton Falls, Eudlo Creek and Ferntree Creek national parks.

The park protects four plant species of the family Proteaceae, all listed as threatened: the bopple nut (Macadamia ternifolia), the macadamia nut (Macadamia integrifolia), Triunia robusta and the ball nut (Floydia praealta). Birdwatchers have recorded the Pacific baza, the pheasant coucal and the Australian brushturkey here. There are no roads or visitor facilities inside the park.

Triunia National Park has no roads or visitor facilities of any kind, so access is on foot only. From Nambour on the Bruce Highway, take the Nambour Mapleton Road towards Mapleton; about halfway, the Dulong Road branches south and passes the park after three kilometres.

Four plant species of the Proteaceae family grow in the park, all listed as endangered: the bopple nut (Macadamia ternifolia), the macadamia nut (Macadamia integrifolia), Triunia robusta and the ball nut (Floydia praealta). The park is named after the genus Triunia.