Dark Harbor is a village located on the most southern end of the town of Islesboro in Waldo County, Maine.

[2] Dark Harbor, named for the synonymous meaning of obscure or hidden, was noted in the turn of the century for its picturesque summer cottages.

[3] Organized in 1902, The Dark Harbor Association was formed mostly of summer residents whose main goal was to improve and beautify the village.

[2] Tennis, golf, and yacht racing were popular forms of entertainment for Dark Harbor's summer residents.

[5] Mary Mallon, infamous for being the first named asymptomatic Typhoid carrier in the United States, also visited Dark Harbor in the early 1900s.