| Mungo River | |
| Source1 Location: | Southern Alps |
| Mouth Location: | Hokitika River |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Length: | 13km (08miles) |
The Mungo River is a river of the West Coast Region of New Zealand's South Island. The major source of the Hokitika River, it flows generally west from the Southern Alps, becoming the Hokitika River at the point where it turns north as it flows through a gap in the Diedrichs Range. The Hokitika Saddle separates the headwaters of the Mungo from those of the Rakaia River system which flows to the island's east coast.