| Shell Lake | |
| Location: | Washburn County, Wisconsin |
| Type: | Reservoir |
| Area: | 2513acres |
| Islands: | Scout Island |
| Cities: | Shell Lake |
| Pushpin Map: | Wisconsin#USA |
Shell Lake is a lake in Washburn County, Wisconsin, in the United States. This lake was named for the shape of the lake that resembles the shells of freshwater bivalves. The Shell Lake Municipal Airport is located on a peninsula on the western shoreline of the lake.