Ōruawharo River

The Ōruawharo River is a river on the North Auckland Peninsula of New Zealand. It flows westward into the Kaipara Harbour west of Wellsford. It forms part of the boundary between the Northland region and the Auckland Region.

The New Zealand Ministry for Culture and Heritage gives translations of "place of [a] stretched-out pit" or "place of Ruawharo [a personal name]" for Ōruawharo.

History
In pre-European times, the Ōruawharo River was important to the Tāmaki Māori people of the Kaipara Harbour. The Opou portage allowed waka to be transported across the Okahukura Peninsula between the Ōruawharo and Tauhoa rivers.