| Lake Wallula | |
|---|---|
| Location | Washington / Oregon, USA |
| Lake type | reservoir |
| Primary inflows | Columbia River |
| Primary outflows | Columbia River |
| Basin countries | United States |
Lake Wallula is a reservoir on the Columbia River in the United States, between the U.S. states of Washington and Oregon. It was created in 1954 with the construction of McNary Dam. It reaches from McNary Dam near the city of Umatilla, Oregon, to the Tri-Cities of Washington.