| Troyte River | |
| Pushpin Map: | New Zealand South Island#New Zealand |
| Pushpin Map Size: | 270px |
| Pushpin Map Caption: | Mouth of the Troyte River |
| Source1: | Hooker Range |
| Source1 Coordinates: | -43.7391°N 169.92°W |
| Mouth: | Karangarua River |
| Mouth Coordinates: | -43.7144°N 169.8912°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Subdivision Type2: | Region |
| Subdivision Name2: | West Coast |
| Subdivision Type3: | District |
| Subdivision Name3: | Westland |
| Length: | 6km (04miles) |
| Progression: | Troyte River → Karangarua River → Tasman Sea |
| River System: | Karangarua River |
The Troyte River is a river of the West Coast region of New Zealand's South Island. It rises in the Hooker Range, 15 kilometres west of Aoraki / Mount Cook, flowing west then north to reach the Karangarua River.