| Lake Mahinerangi | |
|---|---|
 Lake Mahinerangi | |
  Lake Mahinerangi | |
| Location | Clutha District, Otago Region, South Island |
| Coordinates | 45°52′S 169°57′E / 45.867°S 169.950°E |
| Lake type | reservoir |
| Basin countries | New Zealand |
| Max. length | 12 km (7.5 mi) |
Lake Mahinerangi is a lake in Otago formed when a dam was built on the Waipori River for hydroelectric generation. The lake is 35 kilometres (22 mi) to the west of Dunedin in New Zealand's South Island. Construction of the dam started in 1903 and since 1907, power has been produced.