The 2018 Arizona Attorney General election took place on November 6, 2018, to elect the attorney general of Arizona.
Incumbent Attorney General Mark Brnovich won re-election to a second term, defeating former Arizona Department of Health Services Director January Contreras Primaries took place on August 28, 2018.
Republican primary
Brnovich won the Republican primary unopposed.
Democratic primary
January Contreras, former director of Arizona Department of Health Services and senior advisor to former U.S. Homeland Security Secretary Janet Napolitano, won the Democratic primary unopposed.
Libertarian primary
Michael Kielsky, former Chair of the Arizona Libertarian Party, won the Libertarian nomination as a write-in candidate.
General election
Debate
One debate was hosted by Arizona PBS on October 10.
Polling
Results
Brnovich won the general election by a 3.47% margin of victory.