| Percival River | |
| Source1 Location: | Hanmer Range |
| Mouth Location: | Waiau River |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Length: | 140NaN0 |
The Percival River is a river of the Canterbury region of New Zealand's South Island. It flows southwest from its origins in the Hanmer Range to the northeast of Hanmer Springs, reaching the Waiau River 7km (04miles) south of the town.