| Election Name: | 1946 United States Senate election in Virginia |
| Country: | Virginia |
| Flag Year: | 1931 |
| Type: | presidential |
| Previous Election: | 1940 United States Senate election in Virginia |
| Previous Year: | 1940 |
| Next Election: | 1952 United States Senate election in Virginia |
| Next Year: | 1952 |
| Election Date: | November 5, 1946 |
| Image1: | Harry F. Byrd (cropped).jpg |
| Nominee1: | Harry F. Byrd Sr. |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 163,960 |
| Percentage1: | 64.84% |
| Nominee2: | Lester S. Parsons |
| Party2: | Republican Party (US) |
| Popular Vote2: | 77,005 |
| Percentage2: | 30.45% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Election: | Harry F. Byrd Sr. |
| Before Party: | Democratic Party (US) |
| After Election: | Harry F. Byrd Sr. |
| After Party: | Democratic Party (US) |
The 1946 United States Senate election in Virginia was held on November 5, 1946. Incumbent Senator Harry F. Byrd Sr. was re-elected to a fourth term after defeating Republican Lester S. Parsons.