Marion Harland Crank (February 18, 1915 – December 19, 1994) was an American Democratic politician from Foreman in Little River County in the U.S. state of Arkansas. He served in the Arkansas House of Representatives from 1951 to 1968. He was the Speaker of the Arkansas House of Representatives from 1963 to 1964 and his party's gubernatorial nominee in 1968, but he was narrowly defeated by the incumbent Republican Winthrop Rockefeller.