| Damariscotta Lake | |
| Location: | Lincoln County, Maine |
| Coordinates: | 44.147°N -69.486°W |
| Type: | Lake |
| Outflow: | Damariscotta River |
| Islands: | Spectacle Islands |
| Pushpin Map: | Maine |
| Pushpin Map Alt: | Location of the lake in Maine. |
Damariscotta Lake is a lake in Lincoln County, Maine. Damariscota Lake, which covers, encompasses part of the towns of Jefferson, Nobleboro, and Newcastle. Damariscotta Lake State Park in Jefferson occupies 19 acres at the far northern end of the lake. The lake is known for its annual run of alewives and the dam and fish ladder built in 1807 at Damariscotta Mills at the lake's southern tip.