The Fish River, is a river in the Otago Region of New Zealand. A tributary of the Makarora River, it rises east of Mount Burke and flows south-eastward through Mount Aspiring National Park, crossing at 44ð 6.97'S 169ð 20.66'E, to join that river south of Haast Pass.
The river was named by Julius von Haast in 1863 Charles Cameron travelled up the Fish River a few weeks earlier.