The 2024 Arizona Republican presidential primary was held on March 19, 2024, as part of the Republican Party primaries for the 2024 presidential election.

43 delegates to the 2024 Republican National Convention were allocated on a winner-take-all basis.

[1] The contest was held alongside primaries in Florida, Illinois, Kansas, and Ohio.

In the 2016 Republican presidential contest, Donald Trump won the Arizona primary with 46.0% of the vote, with his nearest opponent, Senator Ted Cruz, taking 27.6% of the vote.

In the 2020 primaries, the Arizona Republican Party canceled their contest.