| Election Name: | 2000 United States Senate election in Arizona |
| Country: | Arizona |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1994 United States Senate election in Arizona |
| Previous Year: | 1994 |
| Next Election: | 2006 United States Senate election in Arizona |
| Next Year: | 2006 |
| Election Date: | November 7, 2000 |
| Image1: | Jon Kyl, official 109th Congress photo (cropped).jpg |
| Nominee1: | Jon Kyl |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 1,101,196 |
| Percentage1: | 79.32% |
| Nominee2: | William Toel |
| Party2: | Independent |
| Popular Vote2: | 109,230 |
| Percentage2: | 7.82% |
| Image4: | No image.png |
| Nominee4: | Vance Hansen |
| Party4: | Green Party (United States) |
| Popular Vote4: | 108,926 |
| Percentage4: | 7.80% |
| Image5: | Barry Hess by Gage Skidmore.jpg |
| Nominee5: | Barry Hess |
| Party5: | Arizona Libertarian Party |
| Popular Vote5: | 70,724 |
| Percentage5: | 5.06% |
| Map Size: | 220px |
| U.S. Senator | |
| Before Election: | Jon Kyl |
| Before Party: | Republican Party (United States) |
| After Election: | Jon Kyl |
| After Party: | Republican Party (United States) |
The 2000 United States Senate election in Arizona was held on November 7, 2000. Incumbent Republican U.S. Senator Jon Kyl won re-election to a second term. No candidate was nominated from the Democratic Party. Independent Bill Toel, Green party nominee Vance Hansen, and Libertarian party nominee Barry Hess each got more than 5% of the vote, a strong non-major-party performance.
Jon Kyl, a popular incumbent, did not draw a Democratic opponent[2] despite being labeled as vulnerable at one point.[3]