The Ōhinemahuta River, formerly known as the Onamalutu River, is a river of the Marlborough Region of New Zealand's South Island.

It initially flows northeast, turning southeast to reach the Wairau River 5 kilometres (3 mi) northwest of Renwick.

In August 2014, the name of the river was officially altered to Ōhinemahuta River.

[1] The former name of the river, Onamalutu, was a corruption of Ōhinemahuta, which refers to the place where the Rangitāne/Ngāti Mamoe ancestor Hine Mahuta once lived.

This article about a river in the Marlborough Region is a stub.