Blue Hill is a town in Hancock County, Maine, United States, located on Blue Hill Bay. The population was 2,792 at the 2020 census. It is home to the Blue Hill Public Library, Blue Hill Memorial Hospital, George Stevens Academy, the Blue Hill Harbor School, The Bay School, New Surry Theatre, Kneisel Hall, Bagaduce Music Lending Library, the Kollegewidgwok Yacht Club, the Shaw Institute and the Blue Hill Country Club. The town also hosts the annual Blue Hill Fair.

Hancock County is a county located in the U.S. state of Maine. As of the 2020 census, the population was 55,478. Its county seat is Ellsworth. The county was incorporated on June 25, 1789, and named for John Hancock, the first governor of the Commonwealth of Massachusetts.