| Election Name: | 1968 United States Senate election in Idaho |
| Country: | Idaho |
| Flag Year: | 1956 |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1962 United States Senate election in Idaho |
| Previous Year: | 1962 |
| Next Election: | 1974 United States Senate election in Idaho |
| Next Year: | 1974 |
| Election Date: | November 5, 1968 |
| Image1: | File:Portrait of Frank Church (D-ID).png |
| Nominee1: | Frank Church |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 173,482 |
| Percentage1: | 60.26% |
| Party2: | Republican Party (US) |
| Popular Vote2: | 114,394 |
| Percentage2: | 39.74% |
| U.S. Senator | |
| Map Size: | 250px |
| Before Party: | Democratic Party (US) |
| After Party: | Democratic Party (US) |
The 1968 United States Senate election in Idaho took place on Tuesday, November 5. Democratic incumbent Frank Church was re-elected to a third term in office, defeating Republican U.S. Representative George V. Hansen.