James Colvin was a New Zealand Member of Parliament for Buller, in the South Island.

Westport is a town in the West Coast region of the South Island of New Zealand. Established in 1861, it is the oldest European settlement on the West Coast. Originally named Buller, it is on the right bank and at the mouth of the Buller River, close by the prominent headland of Cape Foulwind. It is connected via State Highway 6 with Greymouth, 100 kilometres (62 mi) to the south, and with Nelson 222 kilometres (138 mi) in the northeast, via the Buller Gorge. The population of the Westport urban area was 4,250 as of June 2023. The Buller District had a population of 9,670.