1984 Arizona House of Representatives election

The 1984 Arizona House of Representatives elections were held on November 6, 1984. Voters elected all 60 members of the Arizona House of Representatives in multi-member districts to serve a two-year term. The elections coincided with the elections for other offices, including U.S. House and State Senate. Primary elections were held on September 11, 1984.

Prior to the elections, the Republicans held a majority of 39 seats over the Democrats' 21 seats.

Following the elections, Republicans maintained control of the chamber, though their majority was reduced to 38 Republicans to 22 Democrats, a net gain of one seat for Democrats.

The newly elected members served in the 37th Arizona State Legislature, during which Republican James J. Sossaman was elected as Speaker of the Arizona House.