Mangapai River

The Mangapai River is a river of the Northland Region of New Zealand's North Island. It is perhaps better described as a silty arm of Whangārei Harbour, located 10 km due south of Whangārei. Its average width is some 4 m, but the silty nature of its course means that the stream itself is far narrower.

The New Zealand Ministry for Culture and Heritage gives a translation of "good stream" for Mangapai.