| Elections in Arizona |
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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.
Democratic primary
Candidates
- Henry F. Ashurst, incumbent U.S. Senator
Republican primary
Candidates
- Joseph H. Kibbey, former Territorial Governor of Arizona
- William H. Stilwell, former Associate Justice of the Arizona Territorial Supreme Court
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Joseph H. Kibbey | 4,775 | 72.00% | |
| Republican | William H. Stilwell | 1,857 | 28.00% | |
| Total votes | 6,632 | 100.00 | ||
General election
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Henry F. Ashurst (incumbent) | 29,873 | 55.36% | ||
| Republican | Joseph H. Kibbey | 21,261 | 39.40% | ||
| Socialist | W. S. Bradford | 2,827 | 5.24% | ||
| Majority | 8,612 | 15.96% | |||
| Turnout | 53,961 | ||||
| Democratic gain from Republican | Swing | ||||
