The Papahaua Range is a mountain range on the West Coast of New Zealand's South Island east of the town of Westport. It is a geological continuation of the Paparoa Range that is south of the Buller River and it runs north from the Buller Gorge to the Mōkihinui River. At its north end, it meets the Glasgow Range. The Papahaua Ranges are largely forested and human habitation is low. The decline of coal has led to some settlements such as Denniston and Millerton becoming virtually ghost towns.