1974 Arizona Senate election

The 1974 Arizona Senate election was held on November 5, 1974. Voters elected members of the Arizona Senate in all 30 of the state's legislative districts to serve a two-year term. Primary elections were held on September 10, 1974.

Prior to the elections, the Republicans held a majority of 18 seats over the Democrats' 12 seats.

Following the election, Democrats flipped control of the chamber and took a majority of 18 Democrats to 12 Republicans.

The newly elected senators served in the 32nd Arizona State Legislature.