| Election Name: | 1964 United States Senate election in West Virginia |
| Election Date: | November 3, 1964 |
| Country: | West Virginia |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1958 United States Senate election in West Virginia |
| Previous Year: | 1958 |
| Next Election: | 1970 United States Senate election in West Virginia |
| Next Year: | 1970 |
| Image1: | Robert C. Byrd – 1967.jpg |
| Nominee1: | Robert Byrd |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 515,015 |
| Percentage1: | 67.67% |
| Nominee2: | Cooper P. Benedict |
| Party2: | Republican Party (US) |
| Popular Vote2: | 246,072 |
| Percentage2: | 32.33% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Robert Byrd |
| Before Party: | Democratic Party (US) |
| After Election: | Robert Byrd |
| After Party: | Democratic Party (US) |
The 1964 United States Senate election in West Virginia was held on November 3, 1964 alongside the 1964 United States presidential election. Incumbent Senator Robert Byrd won re-election in a landslide.
Incumbent Senator Robert Byrd ran for a second term in this election. President Lyndon B. Johnson also ran for re-election. Johnson won West Virginia by a very large margin. Johnson was also re-elected President of the United States in 1964 . Democrats also gained two seats in the Senate in the 1964 United States Senate elections.