| Pearson River | |
|---|---|
 Route of the Ngatau River | |
  Mouth of the Ngatau River .png)  Pearson River (New Zealand) | |
| Location | |
| Country | New Zealand |
| Region | West Coast |
| District | Westland |
| Physical characteristics | |
| Source | Pearson Saddle |
| • coordinates | 44°18′22″S 168°50′24″E / 44.3062°S 168.8401°E |
| Mouth | |
• location | Waiatoto River |
• coordinates | 44°17′46″S 168°47′18″E / 44.29611°S 168.78823°E |
| Length | 5 km (3 mi) |
| Basin features | |
| Progression | Pearson River → Waiatoto River → Jackson Bay / Okahu → Tasman Sea |
| Tributaries | |
| • left | Jimmy Creek |
The Pearson River is a river of the West Coast region of New Zealand's South Island. It flows west from Pearson Saddle immediately to the south of Mount Taurus, before joining the Waiatoto River after a distance of roughly 4.5 kilometres (2.8 mi).