Harry Alden Richardson (January 1, 1853 - June 16, 1928) was an American businessman and politician from Dover, in Kent County, Delaware. He was a member of the Republican Party, who was U.S. Senator from Delaware.
He served from Mar. 4, 1907 - Mar. 3, 1913.
Political Offices Preceded by: J. Frank Allee U. S. Senator from Delaware (class 2) March 4, 1907 - March 3, 1913 Succeeded by: Willard Saulsbury, Jr.