| Te Naihi River | |
| Pushpin Map: | New Zealand South Island#New Zealand |
| Pushpin Map Size: | 270px |
| Pushpin Map Caption: | Mouth of the Te Naihi River |
| Source1: | Te Naihi Saddle |
| Source1 Coordinates: | -44.1745°N 168.9519°W |
| Mouth Location: | Waiatoto River |
| Mouth Coordinates: | -44.118°N 168.8137°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Subdivision Type2: | Region |
| Subdivision Name2: | West Coast |
| Subdivision Type3: | District |
| Subdivision Name3: | Westland |
| Length: | 19km (12miles) |
| Progression: | Te Naihi River → Waiatoto River → Jackson Bay / Okahu → Tasman Sea |
| Tributaries Left: | Murray River |
| Tributaries Right: | Calliope Creek |
The Te Naihi River is a river of the Westland District of New Zealand's South Island. It flows generally northwest to reach the Waiatoto River 35km (22miles) southwest of Haast. Much of the river's length is within Mount Aspiring National Park.