| Election Name: | 1956 United States Senate election in Arizona |
| Country: | Arizona |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1950 United States Senate election in Arizona |
| Previous Year: | 1950 |
| Next Election: | 1962 United States Senate election in Arizona |
| Next Year: | 1962 |
| Election Date: | November 6, 1956 |
| Nominee1: | Carl Hayden |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 170,816 |
| Percentage1: | 61.39% |
| Nominee2: | Ross F. Jones |
| Party2: | Republican Party (US) |
| Popular Vote2: | 107,447 |
| Percentage2: | 38.61% |
| Map Size: | 210px |
| U.S. Senator | |
| Before Election: | Carl Hayden |
| Before Party: | Democratic Party (US) |
| After Election: | Carl Hayden |
| After Party: | Democratic Party (US) |
The 1956 United States Senate election in Arizona took place on November 6, 1956. Incumbent Democratic U.S. Senator Carl Hayden ran for reelection to a sixth term, defeating Republican nominee Attorney General of Arizona Ross F. Jones in the general election.