Joseph DioGuardi (born September 20, 1940) is an American certified public accountant and a Republican politician. DioGuardi served in the House of Representatives representing the 20th Congressional district of New York from 1985 to 1989. He was also the Republican nominee for U.S. Senate in New York during the 2010 special election.
DioGuardi, a former partner at Arthur Andersen & Co., also serves as president of the Albanian American Civic League, an organization he co-founded with his wife, Shirley Cloyes DioGuardi.