Cyrus Rowlett "C.R." Smith (September 9, 1899 – April 4, 1990) was the CEO of American Airlines from 1934 to 1968 and from 1973 to 1974. He was also the wartime deputy commander of the Air Transport Command during World War II, and the United States Secretary of Commerce for a brief period under President Lyndon B. Johnson. He is regarded as one of the titans of U.S. airline history.