The Cameron River is a river of New Zealand. It flows southeast from the slopes of Mount Arrowsmith in the Southern Alps / Kā Tiritiri o te Moana, reaching Lake Stream just to the north of the outflow from Lake Heron. The longer Ashburton River / Hakatere flows roughly parallel to the Cameron River, some 3 kilometres (2 mi) to the southwest.

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43°27′S 171°11′E / 43.450°S 171.183°E / -43.450; 171.183