| Election Name: | 1916 United States Senate election in Arizona |
| Country: | Arizona |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1912 United States Senate elections in Arizona |
| Previous Year: | 1912 |
| Next Election: | 1922 United States Senate election in Arizona |
| Next Year: | 1922 |
| Election Date: | November 7, 1916 |
| Nominee1: | Henry F. Ashurst |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 29,873 |
| Percentage1: | 55.36% |
| Nominee2: | Joseph H. Kibbey |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 21,261 |
| Percentage2: | 39.40% |
| Image3: | No_image.svg |
| Nominee3: | W. S. Bradford |
| Party3: | Socialist Party (United States) |
| Popular Vote3: | 2,827 |
| Percentage3: | 5.24% |
| Map Size: | 205px |
| U.S. Senator | |
| Before Election: | Henry F. Ashurst |
| Before Party: | Democratic Party (United States) |
| After Election: | Henry F. Ashurst |
| After Party: | Democratic Party (United States) |
The 1916 United States Senate elections in Arizona took place on November 7, 1916. Incumbent Democratic U.S. Senator Henry F. Ashurst ran for reelection to a second term, defeating Republican former Territorial Governor Joseph H. Kibbey in the general election by a comfortable margin.