Byfield National Park, Nature reserve in Livingstone Shire, Australia.

Byfield National Park is a nature reserve in Livingstone Shire, Queensland, where tall sand dunes sit alongside eucalyptus forests, pockets of rainforest, and a coastal fringe. The terrain shifts quickly as you move through it, with wetlands and scrubland appearing between the open dune fields.

The reserve was formally established in 2004 by Queensland's environment department to protect the coastal ecosystems of the region. Before that, the area remained largely undeveloped, which helped keep much of it in its natural state.

The park lies within the traditional country of the Darumbal people, whose connection to this coast predates the reserve's gazetting on 24 September 2004. The name Byfield is shared with the adjoining Byfield State Forest to the west and with the locality around the park. Visitors travelling the 41 km access road from Yeppoon pass through this country before reaching the dunes and beaches.

A four-wheel-drive vehicle is needed to reach most parts of the park, as sandy tracks and dune crossings are not suitable for standard cars. Camping areas are spread across the reserve, but booking ahead is a good idea, especially during school holiday periods.

The parabolic dunes found here are among the oldest on Australia's east coast, shaped over thousands of years by the prevailing winds. What makes them unusual is that patches of rainforest grow right at their edges, fed by freshwater seeping through the sand.