| Lake Matiri | |
| Pushpin Map: | New Zealand South Island |
| Pushpin Map Alt: | Location of Lake Matiri |
| Coords: | -41.65°N 192°W |
| Basin Countries: | New Zealand |
| Islands: | None |
| Frozen: | No |
Lake Matiri is a lake adjoining Kahurangi National Park in the northwest corner of New Zealand's South Island. The lake is part of the Matiri River.
Pioneer Energy Ltd purchased the Matiri Project from New Zealand Energy in 2014 and has now commenced construction of a hydroelectric power scheme on the lake outflow.