Galt Island Archeological District is a historic archaeological site on Galt Island near St. James City, Florida. Also known as the Galt Island Shell Midden and the Galt Island Burial Mound, it preserves evidence of a shell midden and a burial mound rather than a standing monument. It was designated a U.S. historic district on May 21, 1996, in recognition of the importance of its archaeological record. The site’s significance lies in the remains found there and in what they reveal about the coastal history of southwest Florida.