Edmund Quincy III ( ; 1681–1737) was an American merchant and judge. He was the son of Col. Edmund Quincy II (1627-1698) II and his second wife, Elizabeth Gookin. He married Dorothy Flynt and had 7 children. Four lived to adulthood, including Edmund Quincy IV and Dorothy Quincy, who was the topic of a famous poem by Oliver Wendell Holmes, Sr.
He was born over 2 centuries ago