Marshall Humphrey[1] Republican William S. (Bill) Porter[2] Republican The 1968 Arizona Senate election was held on November 5, 1968.

Voters elected all 30 members of the Arizona Senate to serve two-year terms.

Primary elections were held on September 10, 1968.

[3] Prior to the elections, the Republicans held a majority of 16 seats over the 14 seats held by Democrats.

[4] The newly elected senators served in the 29th Arizona State Legislature.