| Election Name: | 1932 United States Senate election in Wisconsin |
| Country: | Wisconsin |
| Flag Year: | 1913 |
| Type: | presidential |
| Ongoing: | Yes |
| Previous Election: | 1926 United States Senate election in Wisconsin |
| Previous Year: | 1926 |
| Next Election: | 1938 United States Senate election in Wisconsin |
| Next Year: | 1938 |
| Election Date: | November 8, 1932 |
| Nominee1: | F. Ryan Duffy |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 610,236 |
| Percentage1: | 56.98% |
| Nominee2: | John B. Chapple |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 387,668 |
| Percentage2: | 36.20% |
| Nominee3: | Emil Seidel |
| Party3: | Socialist Party of America |
| Popular Vote3: | 65,807 |
| Percentage3: | 6.14% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | John J. Blaine |
| Before Party: | Republican Party (United States) |
| After Election: | F. Ryan Duffy |
| After Party: | Democratic Party (United States) |
The 1932 United States Senate election in Wisconsin was held on November 8, 1932. Incumbent Republican U.S. Senator John J. Blaine ran for a second term in office but lost the Republican primary to John B. Chapple. In the general election, Chapple was defeated by F. Ryan Duffy.