Edwin Denby (February 18, 1870 – February 8, 1929) was an American lawyer and politician who served as Secretary of the Navy in the administrations of Warren G. Harding and Calvin Coolidge from 1921 to 1924. He also played a notable role in the infamous Teapot Dome scandal which took place during the Harding presidency. He was the son of Charles Harvey Denby, grandson of Graham N. Fitch and brother of Charles Denby, Jr..