Eagle Lake is a town in Aroostook County, Maine, United States. The town's population was 815 at the 2000 census. The town was named by a body of troops heading from Bangor to the Aroostook War for the many eagles that they saw around the lake. 49.0% of the population speaks French, reflecting a trend in Northeastern Maine. The former long-time speaker of the Maine House of Representatives and current state senator, John Martin, is from Eagle Lake.