| Penk River | |
| Source1 Location: | Mount Horrible |
| Mouth Location: | Awatere River |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Length: | 130NaN0 |
The Penk River is a river of the Marlborough Region of New Zealand's South Island. It flows predominantly south from its origins on the slopes of Mount Horrible to reach the Awatere River 35km (22miles) southwest of Seddon.