1970 Arizona House of Representatives election

The 1970 Arizona House of Representatives elections were held on November 3, 1970. 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 Governor, U.S. Senate, U.S. House, and State Senate. The 1970 election ushered in the restructuring of the Arizona Legislature to its current format. There are now 30 electoral districts across the state, each district electing a single state senator and two state representatives.

Primary elections were held on September 8, 1970.

Prior to the elections, the Republicans held a majority of 34 seats over the Democrats' 26 seats.

Following the elections, Republicans maintained control of the chamber and their majority with 34 Republicans to 26 Democrats remained unchanged.

The newly elected members served in the 30th Arizona State Legislature, during which Republican Timothy A. Barrow was chosen as Speaker of the Arizona House.