The 1976 Arizona Senate election was held on November 2, 1976. 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 7, 1976.
Prior to the elections, the Democrats held a majority of 18 seats over the Republicans' 12 seats.
Following the election, Democrats maintained control of the chamber with 16 Democrats to 14 Republicans, a net gain of two seats for Republicans.
The newly elected senators served in the 33rd Arizona State Legislature.