2000 Arizona Senate election

The 2000 Arizona Senate election was held on November 7, 2000. 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 12, 2000.

Prior to the elections, the Republicans held a majority of 16 seats over the Democrats' 14 seats.

Following the election, a 15–15 tie forced a power sharing agreement between Democrats and Republicans, a net gain of one seat for Democrats.

The newly elected senators served in the 45th Arizona State Legislature.

Democrats

 * 1) District 8: Gus Arzberger
 * 2) District 10: Victor Soltero
 * 3) District 13: George Cunningham

Republicans

 * 1) District 2: John Wettaw
 * 2) District 6: John Huppenthal
 * 3) District 9: Keith A. Bee
 * 4) District 12: Ann Day
 * 5) District 18: Marc Spitzer
 * 6) District 24: Sue Grace
 * 7) District 30: Tom Freestone