| Election Name: | 1964 United States Senate election in Rhode Island |
| Country: | Rhode Island |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1958 United States Senate election in Rhode Island |
| Previous Year: | 1958 |
| Next Election: | 1970 United States Senate election in Rhode Island |
| Next Year: | 1970 |
| Election Date: | November 3, 1964 |
| Image1: | File: John Pastore in 1961.jpg |
| Nominee1: | John Pastore |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 319,607 |
| Percentage1: | 82.73% |
| Nominee2: | Ronald Lagueux |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 66,715 |
| Percentage2: | 17.27% |
| U.S. Senator | |
| Before Election: | John Pastore |
| Before Party: | Democratic Party (United States) |
| After Election: | John Pastore |
| After Party: | Democratic Party (United States) |
The 1964 United States Senate election in Rhode Island took place on November 3, 1964. Incumbent Democratic U.S. Senator John Pastore successfully sought re-election, defeating Republican Ronald Lagueux with 82.73% of the vote.
Primary elections were held on September 17, 1964.