| Ronga River | |
|---|---|
 | |
| Location | |
| Country | New Zealand |
| Physical characteristics | |
| Mouth | |
• location | Rai River |
| Length | 10 km (6 mi) |
The Ronga River is a river of the Marlborough Region of New Zealand's South Island. Although its source is on a ridge only 3 kilometres (2 mi) from the island's north coast, the river flows south, reaching the Rai River close to the township of Rai Valley.