Thomas Edward Campbell (January 18, 1878–March 1, 1944) was the third governor in the State of Arizona. He is also the first Republican and first native-born governor. He was initially declared the 2nd governor of Arizona in a disputed gubernatorial election but the decision was later overturned by the Supreme Court of Arizona, who awarded the election to George W.P. Hunt. Cambell later ran for governor again and won two terms. He died in 1944 from a cerebral hemorrhage in the State Capital.
Campbell was Prescott's assistant postmaster in 1894, and postmaster of Jerome, Arizona, from 1902 to 1905.
Campbell served in the Arizona Territorial Legislature from 1900 to 1901, was county assessor of Yanapai County from 1907 to 1911, and again in 1912 to 1915.
Campbell suffered a cerebral hemorrhage on the state capitol grounds and died on March 1, 1944, at the age of 66.