| Election Name: | 1938 United States Senate election in Vermont |
| Country: | Vermont |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate special election in Vermont |
| Previous Year: | 1934 |
| Next Election: | 1940 United States Senate special election in Vermont |
| Next Year: | 1940 (special) |
| Image1: | Ernest W. Gibson, Vermont LCCN2016848430 (cropped).jpg |
| Nominee1: | Ernest W. Gibson Sr. |
| Party1: | Republican Party (US) |
| Popular Vote1: | 73,990 |
| Percentage1: | 65.67% |
| Party2: | Democratic Party (US) |
| Nominee2: | John McGrath |
| Popular Vote2: | 38,673 |
| Percentage2: | 34.33% |
| U.S. Senator | |
| Before Election: | Ernest W. Gibson Sr. |
| Before Party: | Republican Party (US) |
| After Election: | Ernest W. Gibson Sr. |
| After Party: | Republican Party (US) |
The 1938 United States Senate election in Vermont took place on November 8, 1938. Republican Ernest W. Gibson Sr. successfully ran for re-election to another term in the United States Senate, defeating Democratic candidate John McGrath. Gibson Sr. died in June 1940 and his son, Ernest W. Gibson Jr., was appointed to fill the seat until a special election could be held in November 1940.