Thomas Stuart Ferguson (May 21, 1915 – March 16, 1983) was an American lawyer, a Mormon and an amateur archaeologist who dedicated his life to finding archeological evidence of the Book of Mormon in Mesoamerica. He was instrumental in the foundation of the New World Archaeological Foundation. He initially believed that the history of Mesoamerican cultures provided support to the historicity of the Book of Mormon, but towards the end of his life came to the conclusion that the Book of Mormon was a work of fiction rather than a historical book.