Deer Isle is a town in Hancock County, Maine, United States. The population was 1,975 at the 2010 census. Notable landmarks in Deer Isle are the Haystack Mountain School of Crafts and the town's many art galleries.
The town was incorporated in 1789, at which time it included the islands of Little Deer Isle, Deer Isle, and Isle au Haut. Deer was abundant on these islands, hence the name. In 1868 Isle au Haut became a separate town. In 1897, the southern third of Deer Isle incorporated as the town of Stonington.
In the 19th century, the granite industry flourished on Deer Isle where its quarries supplied granite for structures such as the Boston Museum of Fine Arts, the Smithsonian Institution, the US Naval Academy, the Manhattan Bridge and at President John F. Kennedy's tomb at Arlington National Cemetery.
In John Steinbeck's Travels with Charley, Deer Isle was a stopping point for the author after the insistence of his literary agent that he visit the cottage of Eleanor Brace, at Dunham's Point. Steinbeck wrote, "One doesn't have to be sensitive to feel the strangeness of Deer Isle".
It was Deer Isle that musician Dan Fogelberg and his wife Jean chose for their final home, and where he died in 2007. This isle was the home town of the dock that was the inspiration for the painter Fairfield Porter. Many small private islands can be found in the waters surrounding Deer Isle.