Ōnahau River

Ōnahau River
Route of the Ōnahau River
Mouth of the Ōnahau River Show map of New Zealand Ōnahau River (South Island) Show map of South Island
Location
Country	New Zealand
Physical characteristics
Source
• coordinates	40°50′15″S 172°42′48″E / 40.8375°S 172.7134°E / -40.8375; 172.7134
Mouth
• location	Golden Bay / Mohua
• coordinates	40°48′03″S 172°46′25″E / 40.80093°S 172.77368°E / -40.80093; 172.77368
Length	8 kilometres (5.0 mi)
Basin features
Progression	Ōnahau River → Golden Bay / Mohua → Tasman Sea
Tributaries
• right	Little Ōnahau River

The Ōnahau River is a river of the Tasman Region of New Zealand's South Island. It has its sources close to the track in Kahurangi National Park that follows a ridgeline to Parapara Peak. From here, it flows northeast to reach Golden Bay via a little estuary just east of Rangihaeata. The Little Ōnahau River follows a roughly parallel course to the southwest of the Ōnahau River and has its confluence upstream from the estuary. Upstream from the confluence, both these rivers are crossed by State Highway 60.

• List of rivers of New Zealand

"Place name detail: Ōnahau River". New Zealand Gazetteer. New Zealand Geographic Board. Retrieved 14 January 2022.