Fort Edgecomb, built in 1808-1809, is a two-story octagonal wooden blockhouse and restored fortifications located on Davis Island in the town of Edgecomb, Lincoln County, Maine, United States. It is also known as Fort Edgecomb State Historic Site. On October 1, 1969, it was added to the National Register of Historic Places and on December 22, 1991, its boundaries were increased to create an historic district.