List of United States senators from 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 November 1. The state's current U.S. senators are Democrat Kyrsten Sinema and Republican Martha McSally, both serving since 2019, making it one of nine states to have a split United States Senate delegation.
List of senators
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Superlatives (top 5)
Longest service
Shortest service
Does not include incumbents| Senator | First served | Last served | Length of service |
| Ralph H. Cameron | |||
| Jeff Flake | |||
| Marcus A. Smith | |||
| Ernest McFarland | |||
| Paul Fannin |
Youngest at beginning of service
Oldest at end of service
Living former U.S. senators from Arizona
, there are three living former U.S. senators from Arizona. The most recent senator to die was John McCain, who died in office on August 25, 2018 and was also the most recently serving senator to die.| Senator | Term of office | Date of birth |
| Dennis DeConcini | January 3, 1977 – January 3, 1995 | |
| Jon Kyl | January 3, 1995 – January 3, 2013 September 4, 2018 – December 31, 2018 | |
| Jeff Flake | January 3, 2013 – January 3, 2019 |