Tremont is a town in Hancock County, Maine, United States. It is located on the southwestern side of Mount Desert Island, known to locals as "the backside."
Tremont includes the villages of Bass Harbor (or McKinley), Bernard, Gotts Island, Seal Cove and West Tremont. Part of Acadia National Park lies within the town. Bass Harbor is the terminus for the Swan's Island ferry and the Frenchboro ferry. The population was 1,563 at the 2010 census.