List of United States senators from Arizona

Arizona was admitted to the Union on February 14, 1912. U.S. senators from Arizona belong to class 1 and class 3 and are popularly elected for a six-year term beginning January 3. Elections are held the first Tuesday after the first Monday in November. The state's current U.S. senators are Independent Kyrsten Sinema, serving since 2019, and Democrat Mark Kelly, serving since 2020. Carl Hayden was the longest serving senator, served from 1927 to 1969. Arizona is one of fifteen states alongside Colorado, Florida, Georgia, Hawaii, Idaho, Indiana, Louisiana, Maine, Massachusetts, Minnesota, Missouri, Nevada, South Dakota and Utah to have a younger senior senator and an older junior senator. In total, only 14 individuals have ever served as a Senator from Arizona.

List of senators

 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Feb 14, 1912 – Mar 27, 1912
 * Arizona became a state February 14, 1912, but didn't elect its U.S. senators until March 27.
 * rowspan=4 | 1
 * rowspan=2
 * rowspan=3 | 1
 * Arizona became a state February 14, 1912, but didn't elect its U.S. senators until March 27.
 * nowrap | Feb 14, 1912 – Mar 27, 1912
 * colspan=3 | Vacant

! rowspan=15 | 1 ! rowspan=5 | 1
 * - style="height:2em"
 * rowspan=15 align=left | Henry Fountain Ashurst.jpg Henry F. Ashurst
 * rowspan=15 | Democratic
 * rowspan=15 nowrap | Mar 27, 1912 – Jan 3, 1941
 * rowspan=3 | Elected in 1912.
 * rowspan=2 | Elected in 1912.
 * rowspan=5 nowrap | Mar 27, 1912 – Mar 3, 1921
 * rowspan=5 | Democratic
 * rowspan=5 align=right | Marcus Aurelius Smith.jpg Marcus A. Smith


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 2
 * rowspan=3 | Re-elected in 1914.Lost re-election.
 * rowspan=3 | Re-elected in 1914.Lost re-election.


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 * rowspan=3 | Re-elected in 1916.
 * rowspan=3 | 2


 * - style="height:2em"

! rowspan=3 | 2
 * - style="height:2em"
 * rowspan=3 | 3
 * rowspan=3 | Elected in 1920.Lost re-election.
 * rowspan=3 nowrap | Mar 4, 1921 – Mar 3, 1927
 * rowspan=3 | Republican
 * rowspan=3 align=right | Senator Ralph Cameron.jpg Ralph H. Cameron
 * rowspan=3 align=right | Senator Ralph Cameron.jpg Ralph H. Cameron


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1922.
 * rowspan=3 | 3


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! rowspan=21 | 3
 * - style="height:2em"
 * rowspan=3 | 4
 * rowspan=3 | Elected in 1926.
 * rowspan=21 nowrap | Mar 4, 1927 – Jan 3, 1969
 * rowspan=21 | Democratic
 * rowspan=21 align=right | CarlHayden.jpg Carl Hayden
 * rowspan=21 align=right | CarlHayden.jpg Carl Hayden


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1928.
 * rowspan=3 | 4


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 5
 * rowspan=3 | Re-elected in 1932.
 * rowspan=3 | Re-elected in 1932.


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1934.Lost renomination.
 * rowspan=3 | 5


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 6
 * rowspan=3 | Re-elected in 1938.
 * rowspan=3 | Re-elected in 1938.

! rowspan=6 | 2
 * - style="height:2em"
 * rowspan=6 align=left | Mcfarland ernest.jpg Ernest McFarland
 * rowspan=6 | Democratic
 * rowspan=6 nowrap | Jan 3, 1941 – Jan 3, 1953
 * rowspan=3 | Elected in 1940.
 * rowspan=3 | 6


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 7
 * rowspan=3 | Re-elected in 1944.
 * rowspan=3 | Re-elected in 1944.


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1946.Lost re-election.
 * rowspan=3 | 7


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 8
 * rowspan=3 | Re-elected in 1950.
 * rowspan=3 | Re-elected in 1950.

! rowspan=6 | 3
 * - style="height:2em"
 * rowspan=6 align=left | Senator Goldwater 1960.jpg Barry Goldwater
 * rowspan=6 | Republican
 * rowspan=6 nowrap | Jan 3, 1953 – Jan 3, 1965
 * rowspan=3 | Elected in 1952.
 * rowspan=3 | 8


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 9
 * rowspan=3 | Re-elected in 1956.
 * rowspan=3 | Re-elected in 1956.


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1958.Retired to run for U.S. President.
 * rowspan=3 | 9


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 10
 * rowspan=3 | Re-elected in 1962.Retired.
 * rowspan=3 | Re-elected in 1962.Retired.

! rowspan=6 | 4
 * - style="height:2em"
 * rowspan=6 align=left | Paul Fannin.jpg Paul Fannin
 * rowspan=6 | Republican
 * rowspan=6 nowrap | Jan 3, 1965 – Jan 3, 1977
 * rowspan=3 | Elected in 1964.
 * rowspan=3 | 10


 * - style="height:2em"

! rowspan=9 | 4
 * - style="height:2em"
 * rowspan=3 | 11
 * rowspan=3 | Elected in 1968.
 * rowspan=9 nowrap | Jan 3, 1969 – Jan 3, 1987
 * rowspan=9 | Republican
 * rowspan=9 align=right | BarryGoldwater.jpg Barry Goldwater
 * rowspan=9 align=right | BarryGoldwater.jpg Barry Goldwater


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1970.Retired.
 * rowspan=3 | 11


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 * - style="height:2em"
 * rowspan=3 | 12
 * rowspan=3 | Re-elected in 1974.
 * rowspan=3 | Re-elected in 1974.

! rowspan=9 | 5
 * - style="height:2em"
 * rowspan=9 align=left | Dennis DeConcini.jpg Dennis DeConcini
 * rowspan=9 | Democratic
 * rowspan=9 nowrap | Jan 3, 1977 – Jan 3, 1995
 * rowspan=3 | Elected in 1976.
 * rowspan=3 | 12


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 13
 * rowspan=3 | Re-elected in 1980.Retired.
 * rowspan=3 | Re-elected in 1980.Retired.


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1982.
 * rowspan=3 | 13


 * - style="height:2em"

! rowspan=16 | 5
 * - style="height:2em"
 * rowspan=3 | 14
 * rowspan=3 | Elected in 1986.
 * rowspan=16 nowrap | Jan 3, 1987 – Aug 25, 2018
 * rowspan=16 | Republican
 * rowspan=16 align=right | Senator John McCain official portrait 2006 (2).jpg John McCain
 * rowspan=16 align=right | Senator John McCain official portrait 2006 (2).jpg John McCain


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1988.Retired.
 * rowspan=3 | 14


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 15
 * rowspan=3 | Re-elected in 1992.
 * rowspan=3 | Re-elected in 1992.

! rowspan=9 | 6
 * - style="height:2em"
 * rowspan=9 align=left | Jon Kyl, official 109th Congress photo.jpg Jon Kyl
 * rowspan=9 | Republican
 * rowspan=9 nowrap | Jan 3, 1995 – Jan 3, 2013
 * rowspan=3 | Elected in 1994.
 * rowspan=3 | 15


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 16
 * rowspan=3 | Re-elected in 1998.
 * rowspan=3 | Re-elected in 1998.


 * - style="height:2em"
 * rowspan=3 | Re-elected in 2000.
 * rowspan=3 | 16


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 17
 * rowspan=3 | Re-elected in 2004.
 * rowspan=3 | Re-elected in 2004.


 * - style="height:2em"
 * rowspan=3 | Re-elected in 2006.Retired.
 * rowspan=3 | 17


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | 18
 * rowspan=3 | Re-elected in 2010.
 * rowspan=3 | Re-elected in 2010.

! rowspan=6 | 7
 * - style="height:2em"
 * rowspan=6 align=left | Jeff Flake, official portrait, 113th Congress.jpg Jeff Flake
 * rowspan=6 | Republican
 * rowspan=6 nowrap | Jan 3, 2013 – Jan 3, 2019
 * rowspan=6 | Elected in 2012.Retired.
 * rowspan=6 | 18


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=4
 * rowspan=8 | 19
 * Re-elected in 2016.Died.


 * - style="height:2em"
 * nowrap | Aug 25, 2018 – Sep 4, 2018
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! 6
 * - style="height:2em"
 * Appointed to continue McCain's term.Resigned.
 * nowrap | Sep 4, 2018 – Dec 31, 2018
 * | Republican
 * align=right | Jon Kyl, official portrait, 115th Congress.jpg Jon Kyl


 * - style="height:2em"
 * nowrap | Dec 31, 2018 – Jan 3, 2019
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! rowspan=5 | 8 present ! 7
 * - style="height:2em"
 * rowspan=5 align=left | Kyrsten Sinema (cropped).jpg Kyrsten Sinema
 * rowspan=3 | Democratic
 * rowspan=5 | Jan 3, 2019 –
 * rowspan=5 | Elected in 2018.Left the Democratic Party on December 9, 2022.Retiring at the end of term.
 * rowspan=5 | 19
 * rowspan=2
 * Appointed to continue McCain's term.Lost election to finish McCain's term.
 * nowrap | Jan 3, 2019 – Dec 2, 2020
 * | Republican
 * align=right | Sen. Martha McSally official Senate headshot 116th congress (cropped).jpg Martha McSally

present ! rowspan=6 | 8
 * - style="height:2em"
 * rowspan=3 | Elected in 2020 to finish McCain's term.
 * rowspan=6 nowrap | Dec 2, 2020 –
 * rowspan=6 | Democratic
 * rowspan=6 align=right | Mark Kelly, Official Portrait 117th (cropped).jpg Mark Kelly


 * - style="height:2em"
 * rowspan=2


 * - style="height:2em"
 * rowspan=2 | Independent


 * - style="height:2em"
 * rowspan=3 | 20
 * rowspan=3 | Re-elected in 2022.
 * rowspan=3 | Re-elected in 2022.


 * - style="height:2em"
 * rowspan=3 colspan=5 | To be determined in the 2024 election.
 * rowspan=3 | 20


 * - style="height:2em"


 * - style="height:2em"
 * 21
 * colspan=5 | To be determined in the 2028 election.
 * colspan=5 | To be determined in the 2028 election.