Evan Mecham ( MEE-km; May 12, 1924 February 21, 2008) was an American businessman and the 17th governor of Arizona, serving from January 5, 1987, until his impeachment conviction on April 4, 1988. A decorated veteran of World War II, Mecham was a successful automotive dealership owner and occasional newspaper publisher.Periodic runs for political office earned him a reputation as a perennial candidate along with the nickname of "The Harold Stassen of Arizona" before he was elected governor, under the Republican banner. As governor, Mecham was plagued by controversy almost immediately after his inauguration and became the first U.S. governor to simultaneously face removal from office through impeachment, a scheduled recall election, and a felony indictment. He was the first Arizona governor to be impeached.

Mecham served one term as a state senator before beginning a string of unsuccessful runs for public office. His victory during the 1986 election began with a surprise win of the Republican nomination, followed by a split of the Democratic party during the general election, resulting in a three-way race. While Governor, Mecham became known for statements and actions that were widely perceived as racially charged or racist. Among these actions were the cancellation of the state's paid Martin Luther King Jr. Day and creating an unpaid King holiday on a Sunday, attributing high divorce rates to working women, and his defense of the word "pickaninny" in describing African American children. In reaction to these events, a boycott of Arizona was organized. A rift between the Governor and fellow Republicans in the Arizona Legislature developed after the Arizona Republic newspaper made accusations of questionable political appointments and cronyism, accusations that Mecham contended were false.

Having served from January 5, 1987, to April 4, 1988, Mecham was removed from office following conviction in his impeachment trial on charges of obstruction of justice and misuse of government fundsfunds that Mecham maintained were private. A later criminal trial acquitted Mecham of related charges. Following his removal from office, Mecham remained active in politics for nearly a decade. During this time, he served as a delegate to the Republican National Convention and made his final runs for Arizona governorship and also for the U.S. Senate, in which he unsuccessfully challenged John McCain as an independent.

The governor of Arizona is the head of government of the U.S. state of Arizona. As the top elected official, the governor is the head of the executive branch of the Arizona state government and is charged with faithfully executing state laws. The governor has the power to either approve or veto bills passed by the Arizona State Legislature; to convene the legislature; and to grant pardons, except in cases of impeachment. The governor is also the commander-in-chief of the state's military forces.Twenty-three people have served as governor over 27 distinct terms. All of the repeat governors were in the state's earliest years, when George W. P. Hunt and Thomas Edward Campbell alternated as governor for 17 years and, after a two-year gap, Hunt served another term. One governor, Evan Mecham, was successfully impeached, and one, Fife Symington, resigned upon being convicted of a felony. The longest-serving governor was Hunt, who was elected seven times and served just under fourteen years. The longest single stint was that of Bruce Babbitt, who was elected to two four-year terms after succeeding to the office following the death of his predecessor, Wesley Bolin, serving nearly nine years total. Bolin had the shortest tenure, dying less than five months after succeeding as governor. Four governors were actually born in Arizona: Campbell, Sidney Preston Osborn, Rose Mofford, and Babbitt. Arizona has had four female governors, the most in the United States, and was the first—and until 2019 (when Michelle Lujan Grisham succeeded Susana Martinez in neighboring New Mexico) the only—state where female governors served consecutively. Because of a string of deaths in office, resignations, and an impeachment, Arizona has not had a governor whose complete term of service both began and ended because of "normal" election circumstances since Jack Williams was in office, from 1967 to 1975.

The current Governor is Republican Doug Ducey, who took office on January 5, 2015.