Simon Girty (November 14, 1741 – February 18, 1818) was an American-born frontiersman, soldier and interpreter from Harrisburg, Pennsylvania, who served as a liaison between the British and their Indian allies during the American Revolution. He was portrayed as a villain, and was also featured this way in 19th and early 20th-century fiction from the United States. As children, Girty and his brothers were taken captive in Pennsylvania in a Seneca raid and adopted. He lived with the Seneca for seven years and became fully assimilated, preferring their culture. He was returned to his birth family but retained a sympathy for the Indians.