| Lottery River | |
| Source1 Location: | Amuri Range |
| Mouth Location: | Mason River |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Length: | 22km (14miles) |
The Lottery River is a river of the north Canterbury region of New Zealand's South Island. It rises on the slopes of Mount Tinline, flowing generally south to meet with the Mason River 5km (03miles) northeast of Waiau.