1964 Arizona House of Representatives election

The 1964 Arizona House of Representatives elections were held on November 3, 1964. Voters elected members of the Arizona House of Representatives in all 80 of the state's House districts to serve a two-year term. The elections coincided with the elections for other offices, including Governor, U.S. Senate, U.S. House, and State Senate. Primary elections were held on September 8, 1964.

Prior to the elections, the Democrats held a majority of 48 seats over the Republicans' 32 seats.

Following the elections, Democrats maintained control of the chamber with 45 Democrats to 35 Republicans, a net gain of three seats for Republicans.

The newly elected members served in the 27th Arizona State Legislature, during which Democrat Andrew J. Gilbert was chosen as Speaker of the Arizona House.