William Alfred "Bill" Eddy, Ph.D., Col., USMC (March 9, 1896 – May 3, 1962) was a U.S. minister to Saudi Arabia (1944–1946), university professor and college president (1936–42), and United States Marine Corps officer—serving in World War I and World War II, and U.S. intelligence officer. In 2008 Arabian Knight: Colonel Bill Eddy USMC and the Rise of American Power in the Middle East, the first biography on Bill Eddy, was published by Selwa Press. It is written by the Middle East specialist, author and Washington Post journalist Thomas Lippman.