William Newell Vaile (June 22, 1876 – July 2, 1927) was a U.S. Representative from Colorado. Born in Kokomo, Indiana, Vaile moved with his parents to Denver, Colorado, in 1881. Vaile was of English descent. He attended the public schools and graduated from Yale University in 1898. During the Spanish–American War, he served as a private in the First Regiment of the Connecticut Volunteer Field Artillery from May 19, 1898, to October 25, 1898. On the issue of immigration Vaile said: -Cong. Rec., April 8, 1924, 5922