William E. Lee (January 27, 1882 – December 5, 1955)^[1] was a justice of the Idaho Supreme Court from 1922 to 1930, serving as chief justice from 1926 to 1929.

Lee graduated from the University of Idaho,^[1] and received his law degree from the National University School of Law in Washington, D.C., thereafter returning to Moscow, Iowa, to practice law. He entered into a partnership there with C. J. Orland, under the firm name of Orland & Lee, the firm "building up a lucrative practice".^[2] In August 1922, Lee was nominated by the Republican Party as their candidate for a seat on the state supreme court.^[2]

Following his service on the court, Lee was appointed to the Interstate Commerce Commission by President Herbert Hoover in 1932, serving as chair for a time,^[1] and remaining on the commission until he reached the mandatory retirement age in 1953.^[3]