The 1914 United States Senate election in Arizona was held on Tuesday November 3, Incumbent United States Senator
Marcus Aurelius Smith was reelected to a second term defeating state senator
Don Lorenzo Hubbell, the
Republican nominee, in the general election by a wide margin. Several third party candidates also ran in the election including former
Prohibition Party presidential candidate
Eugene W. Chafin,
Socialist nominee Bert Davis Socialist, and
Progressive nominee J. Bernard Nelson.