The following is a list of people executed in the U.S. state of Arizona before 1972, when capital punishment was briefly abolished by the Supreme Court's ruling in Furman v. Georgia. For people executed after the restoration of capital punishment by the Supreme Court's ruling in Gregg v. Georgia (1976), see List of people executed in Arizona.
Historically, all executions in Arizona were carried out locally by hanging. In January 1910, an official execution chamber was completed at the then-territorial prison in Florence, which later become the state prison in 1912. Capital punishment was briefly abolished in the state between December 8, 1916, to December 5, 1918. Hanging was later replaced by gas asphyxiation on October 28, 1933.