| Election Name: | 1976 United States Senate election in Connecticut |
| Country: | Connecticut |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1970 United States Senate election in Connecticut |
| Previous Year: | 1970 |
| Next Election: | 1982 United States Senate election in Connecticut |
| Next Year: | 1982 |
| Election Date: | November 2, 1976 |
| Nominee1: | Lowell Weicker |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 785,683 |
| Percentage1: | 57.70% |
| Nominee2: | Gloria Schaffer |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 561,018 |
| Percentage2: | 41.20% |
| U.S. Senator | |
| Before Election: | Lowell Weicker |
| Before Party: | Republican Party (United States) |
| After Election: | Lowell Weicker |
| After Party: | Republican Party (United States) |
The 1976 United States Senate election in Connecticut took place on November 2, 1976. Incumbent Republican U.S. Senator Lowell Weicker won re-election to a second term over Secretary of State Gloria Schaffer.