| Gainesville Lake | |
|---|---|
| Location | Pickens County, Alabama, United States |
| Coordinates | 33°03′50″N088°11′35″W / 33.06389°N 88.19306°W |
| Primary inflows | Tennessee-Tombigbee Waterway |
| Primary outflows | Tennessee-Tombigbee Waterway |
| Basin countries | United States |
Gainesville Lake is a reservoir in northwest Alabama on the Tennessee-Tombigbee Waterway. Close to Gainesville, it is impounded by the Howell Heflin Lock and Dam.