| Strauchon River | |
| Name Etymology: | Named after surveyor John L Strauchon |
| Pushpin Map: | New Zealand South Island#New Zealand |
| Pushpin Map Size: | 270px |
| Pushpin Map Caption: | Mouth of the Strauchon River |
| Source1: | Strauchon Glacier |
| Source1 Coordinates: | -43.6318°N 170.033°W |
| Mouth: | Copland River |
| Mouth Coordinates: | -43.6487°N 170.0189°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Subdivision Type2: | Region |
| Subdivision Name2: | West Coast |
| Subdivision Type3: | District |
| Subdivision Name3: | Westland |
| Length: | 5km (03miles) |
| Progression: | Ruera River → Copland River → Karangarua River → Tasman Sea |
| River System: | Karangarua River |
The Strauchon River is a short river of the West Coast Region of New Zealand's South Island. It flows southwest from the face of the Strauchon Glacier to reach the Copland River five kilometres northwest of Mount Sefton. The river's entire length is within Westland Tai Poutini National Park.