| Election Name: | 1964 United States Senate election in Indiana |
| Country: | Indiana |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1958 United States Senate election in Indiana |
| Previous Year: | 1958 |
| Next Election: | 1970 United States Senate election in Indiana |
| Next Year: | 1970 |
| Election Date: | November 3, 1964 |
| Image1: | File:Vance Hartke.jpg |
| Nominee1: | Vance Hartke |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 1,128,505 |
| Percentage1: | 54.33% |
| Nominee2: | D. Russell Bontrager |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 941,519 |
| Percentage2: | 45.33% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Party: | Democratic Party (US) |
| After Party: | Democratic Party (US) |
The 1964 United States Senate election in Indiana took place on November 3, 1964. Incumbent Democratic U.S. Senator Vance Hartke was re-elected to a second term in office over Republican D. Russell Bontrager.