| Spey River | |
| Native Name: | Maori: Kāhuikākāpō |
| Pushpin Map: | New Zealand Fiordland#New Zealand South Island#New Zealand |
| Pushpin Map Size: | 270px |
| Pushpin Map Caption: | Mouth of the Spey River |
| Source1 Location: | Murrells Pass |
| Source1 Coordinates: | -45.5782°N 167.1295°W |
| Source1 Elevation: | 1080m (3,540feet) |
| Mouth Location: | Lake Manapouri |
| Mouth Elevation: | 176m (577feet) |
| Mouth Coordinates: | -45.5267°N 167.273°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Progression: | Spey River → Lake Manapouri → Waiau River → Foveaux Strait |
| Tributaries Left: | Waterfall Creek, Dashwood Stream, Mica Burn, Brae Burn |
| Tributaries Right: | Warren Burn, Wynne Burn, Cockburn Stream, Diamond Creek, Sholl Stream, Todd Burn |
The Spey River is a river in the Southland Region of New Zealand. Its entire length lies within the Fiordland National Park. The Spey rises at the Mckenzie Pass and Murrell's Pass either side of Mt Horatio (1380m (4,530feet), and the river flows in a northeasterly direction, emptying into the West Arm of Lake Manapouri adjacent to the intake of the Manapouri Power Station.[1] [2] The Dusky Track follows the Spey valley for much of the river's length.[3]